Session 4
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marcgauch
parent
65869fbe87
commit
f4babc01a9
89
session-4/1-wilde-schlaufen-mit-watch/app.js
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89
session-4/1-wilde-schlaufen-mit-watch/app.js
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const app = Vue.createApp({
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data() {
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return {
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contacts: [
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{ name: "Hans", firstname: "Meier", dateOfBirth: "1967-12-15" },
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{ name: "Luca", firstname: "Rudolf", dateOfBirth: "1999-01-12" },
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{ name: "Laura", firstname: "Steiner", dateOfBirth: "2002-12-24" },
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{ name: "Alfred", firstname: "Hauser", dateOfBirth: "1932-05-16" },
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],
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amountOfContacts: 4,
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isVisible: false,
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name: "",
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firstname: "",
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dateOfBirth: "",
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};
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},
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methods: {
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addContact() {
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// Das folgende IF verhindert das Hinzufügen eines nicht kompletten Eintrags.
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if (
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this.name !== "" &&
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this.firstname !== "" &&
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this.dateOfBirth !== ""
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) {
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// Kontakt hinzufügen
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this.contacts.push({
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name: this.name,
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firstname: this.firstname,
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dateOfBirth: this.dateOfBirth,
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});
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// Kontaktzähler(amountOfContacts) erhöhen
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this.amountOfContacts = this.amountOfContacts + 1; // (3 mal das gleiche Resultat)
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//this.amountOfContacts += 1; // (3 mal das gleiche Resultat)
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//this.amountOfContacts++ // (3 mal das gleiche Resultat)
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// Eingaben leeren
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this.name = "";
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this.firstname = "";
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this.dateOfBirth = "";
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}
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},
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},
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computed: {},
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// mache einen watcher der uns mitteilt wenn wir 10 oder mehr contacts haben.
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watch: {
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/*
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// für einen spezifischen verbotenen Namen
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firstname() {
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// wir wollen keine asdf* in unserer Adressliste
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// * das ist einfach ein Beispiel
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console.log("im watcher", this.newContactFirstname);
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// wenn der firstname "asdf" ist soll eine Meldung (alert) kommen, das das keine gültige Eingabe ist.
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if (this.firstname === "asdf") {
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alert("dich wollen wir hier nicht");
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}
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},
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*/
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// wir wollen einen Fluchwortfilter beim Vornamen. Egal ob gross oder klein geschrieben
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firstname() {
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// verbotene Namen sind: ["marc", "andrea", "yaren", "stefanie", "stephanie", "stefani"]
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const evils = [
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"andrea",
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"marc",
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"stefani",
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"stefanie",
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"stephanie",
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"yaren",
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];
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for (let i = 0; i < evils.length; i++) {
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const evil = evils[i];
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if (this.firstname === evil) {
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alert("gtfo");
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}
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}
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},
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amountOfContacts() {
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// wenn wir 7 oder mehr kontakte haben soll eine meldung(Zu oberst auf der Seite soll stehen "you're famous") erscheinen.
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if (this.amountOfContacts >= 7) {
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this.isVisible = true;
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}
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},
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},
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});
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app.mount("#app");
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30
session-4/1-wilde-schlaufen-mit-watch/index.html
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30
session-4/1-wilde-schlaufen-mit-watch/index.html
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<title>TITLE</title>
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<link
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href="https://fonts.googleapis.com/css2?family=Jost:wght@400;700&display=swap"
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rel="stylesheet"
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/>
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<link rel="stylesheet" href="styles.css" />
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<script src="https://unpkg.com/vue@next" defer></script>
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<script src="app.js" defer></script>
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</head>
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<body>
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<section id="app">
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<p v-if="isVisible">YOU'RE FAMOUS</p>
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<section>
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Name:<input type="text" v-model="name" /><br />
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Firstname:<input type="text" v-model="firstname" /><br />
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Date of Birth<input type="date" v-model="dateOfBirth" /><br />
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<button @click="addContact">Add to my contacts</button>
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</section>
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<p v-for="contact in contacts">
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{{contact.firstname}}, {{contact.name}}<br />
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{{contact.dateOfBirth}}
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</p>
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</section>
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</body>
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</html>
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64
session-4/1-wilde-schlaufen-mit-watch/styles.css
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64
session-4/1-wilde-schlaufen-mit-watch/styles.css
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* {
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box-sizing: border-box;
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}
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html {
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font-family: 'Jost', sans-serif;
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}
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body {
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margin: 0;
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}
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section {
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box-shadow: 0 2px 8px rgba(0, 0, 0, 0.26);
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margin: 3rem;
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border-radius: 10px;
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padding: 1rem;
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text-align: center;
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}
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h2 {
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font-size: 2rem;
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border-bottom: 4px solid #ccc;
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color: #970076;
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margin: 0 0 1rem 0;
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}
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p {
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font-size: 1.25rem;
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font-weight: bold;
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background-color: #970076;
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padding: 0.5rem;
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color: white;
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border-radius: 25px;
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}
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input {
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font: inherit;
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border: 1px solid #ccc;
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}
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input:focus {
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outline: none;
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border-color: #1b995e;
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background-color: #d7fdeb;
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}
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button {
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font: inherit;
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cursor: pointer;
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border: 1px solid #ff0077;
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background-color: #ff0077;
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color: white;
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padding: 0.05rem 1rem;
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box-shadow: 1px 1px 2px rgba(0, 0, 0, 0.26);
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}
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button:hover,
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button:active {
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background-color: #ec3169;
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border-color: #ec3169;
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box-shadow: 1px 1px 4px rgba(0, 0, 0, 0.26);
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}
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23
session-4/2-nochmals-v-for-und-v-model/app.js
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session-4/2-nochmals-v-for-und-v-model/app.js
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/*
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Das Ziel dieser Anwendung ist es:
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1. Eine Speisekarte für eine Pizzaria zu haben
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2. Weitere Namen hinzufügen können
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*/
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const app = Vue.createApp({
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data() {
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return {
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newPizza: "",
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pizzas: ["Funghi", "Napoli", "Vegetariana"],
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};
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},
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methods: {
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addPizzaName() {
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//hier kommt der code wo ich eine pizza in die liste packe
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this.pizzas.push(this.newPizza);
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},
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},
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});
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app.mount("#app");
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24
session-4/2-nochmals-v-for-und-v-model/index.html
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24
session-4/2-nochmals-v-for-und-v-model/index.html
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<title>TITLE</title>
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<link
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href="https://fonts.googleapis.com/css2?family=Jost:wght@400;700&display=swap"
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rel="stylesheet"
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/>
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<link rel="stylesheet" href="styles.css" />
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<script src="https://unpkg.com/vue@next" defer></script>
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<script src="app.js" defer></script>
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</head>
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<body>
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<section id="app">
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<input type="text" v-model="newPizza" />
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<button @click="addPizzaName">Your new pizza</button>
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<ul>
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<li v-for="pizza in pizzas">{{pizza}}</li>
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</ul>
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</section>
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</body>
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</html>
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64
session-4/2-nochmals-v-for-und-v-model/styles.css
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64
session-4/2-nochmals-v-for-und-v-model/styles.css
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* {
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box-sizing: border-box;
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}
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html {
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font-family: 'Jost', sans-serif;
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}
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body {
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margin: 0;
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}
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section {
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box-shadow: 0 2px 8px rgba(0, 0, 0, 0.26);
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margin: 3rem;
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border-radius: 10px;
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padding: 1rem;
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text-align: center;
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}
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h2 {
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font-size: 2rem;
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border-bottom: 4px solid #ccc;
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color: #970076;
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margin: 0 0 1rem 0;
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}
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p {
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font-size: 1.25rem;
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font-weight: bold;
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background-color: #970076;
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padding: 0.5rem;
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color: white;
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border-radius: 25px;
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}
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input {
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font: inherit;
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border: 1px solid #ccc;
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}
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input:focus {
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outline: none;
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border-color: #1b995e;
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background-color: #d7fdeb;
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}
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button {
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font: inherit;
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cursor: pointer;
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border: 1px solid #ff0077;
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background-color: #ff0077;
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color: white;
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padding: 0.05rem 1rem;
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box-shadow: 1px 1px 2px rgba(0, 0, 0, 0.26);
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}
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button:hover,
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button:active {
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background-color: #ec3169;
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border-color: #ec3169;
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box-shadow: 1px 1px 4px rgba(0, 0, 0, 0.26);
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}
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90
session-4/3-number-guesser/app.js
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session-4/3-number-guesser/app.js
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const app = Vue.createApp({
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data() {
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return {
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target: Math.ceil(Math.random() * 101) - 1,
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number: 0,
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};
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},
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methods: {
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changeNumber(num) {
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this.number += num;
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// erlaubt keine nummern kleiner als 0 oder grösser als 100
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if (this.number < 0) {
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this.number = 0;
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} else if (this.number > 100) {
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this.number = 100;
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}
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},
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},
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computed: {
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result() {
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if (this.number === this.target) {
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return "Nice";
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} else if (this.number < this.target) {
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return "too low";
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} else {
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return "too high";
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}
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},
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paraClasses() {
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return {
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low: this.number < this.target,
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perfect: this.number === this.target,
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high: this.number > this.target,
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};
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},
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},
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});
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app.mount("#app");
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/*
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this.something = true //setzen auf true
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!this.something // NOT true. ändert aber nichts da wir es nicht zuweisen
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this.something = !this.something // zuerst rechts vom = NOT True. also wird FALSe zugewiesen
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this.something // ist jetzt false
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----
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another = true
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another != another -> Das ist KEINE zuweisung sondern ein Vergleich.
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TRUE != TRUE -> das ist false weil TRUE ist nicht ungleich TRUE
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---
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const a = 3
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const b = 4
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const c = a + b + b
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const d = a + 2 * b
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console.log(c) // gibt 11 aus
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console.log(d) // gibt 11 aus
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----
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Unterschied =, == und ===
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// = weist dem ausdruck links das von rechts zu
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// == vergleicht
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// === vergleicht ebenfalls (aber strenger. es wird auf den Datentyp geachtet)
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const a = "1"
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const b = 1
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const c = true
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console.log(a == b) // true
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console.log(a === b) // false. Weil der Datentyp ist nicht gleich. String und Nummer
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console.log(a == c) // true
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console.log(c == a) // true
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console.log(a === c) // false. String und boolean
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console.log(b == c) // true
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console.log(b === c) // false. Nummer und boolean
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*/
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27
session-4/3-number-guesser/index.html
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27
session-4/3-number-guesser/index.html
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<title>TITLE</title>
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<link
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href="https://fonts.googleapis.com/css2?family=Jost:wght@400;700&display=swap"
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rel="stylesheet"
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/>
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<link rel="stylesheet" href="styles.css" />
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<script src="https://unpkg.com/vue@next" defer></script>
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<script src="app.js" defer></script>
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</head>
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<body>
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<section id="app">
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<p :class="paraClasses">{{ result }}</p>
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{{number}}<br /><br />
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<button @click="changeNumber(-10)">- 10</button>
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<button @click="changeNumber(-5)">- 5</button>
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<button @click="changeNumber(-1)">- 1</button>
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<button @click="changeNumber(1)">+ 1</button>
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<button @click="changeNumber(5)">+ 5</button>
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<button @click="changeNumber(10)">+ 10</button>
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</section>
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</body>
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</html>
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72
session-4/3-number-guesser/styles.css
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session-4/3-number-guesser/styles.css
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* {
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box-sizing: border-box;
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}
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html {
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font-family: 'Jost', sans-serif;
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}
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body {
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margin: 0;
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}
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section {
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box-shadow: 0 2px 8px rgba(0, 0, 0, 0.26);
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margin: 3rem;
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border-radius: 10px;
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padding: 1rem;
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text-align: center;
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}
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h2 {
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font-size: 2rem;
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border-bottom: 4px solid #ccc;
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color: #970076;
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margin: 0 0 1rem 0;
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}
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p {
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font-size: 1.25rem;
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font-weight: bold;
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padding: 0.5rem;
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border-radius: 25px;
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}
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input {
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font: inherit;
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border: 1px solid #ccc;
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}
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input:focus {
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outline: none;
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border-color: #1b995e;
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background-color: #d7fdeb;
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}
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button {
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font: inherit;
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cursor: pointer;
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border: 1px solid #ff0077;
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background-color: #ff0077;
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color: white;
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padding: 0.05rem 1rem;
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box-shadow: 1px 1px 2px rgba(0, 0, 0, 0.26);
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}
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button:hover,
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button:active {
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background-color: #ec3169;
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border-color: #ec3169;
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box-shadow: 1px 1px 4px rgba(0, 0, 0, 0.26);
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}
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.low {
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background-color: #6874e1;
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}
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.high {
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background-color: #fa2424;
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}
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.perfect {
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background-color: #7ec932;
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}
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