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Karan
2021-11-24 20:34:53 +05:30
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Chapter 10__/Final Project
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<!DOCTYPE html>
<html>
<head>
<title>Click Me Game</title>
<style>
.output {
width: 500px;
height: 500px;
border: 1px solid black;
margin: auto;
text-align: center;
}
.box {
width: 50px;
height: 50px;
position: relative;
top: 50px;
left: 20%;
background-color: red;
border: 1px solid black;
font-size: 1.5em;
}
.message {
text-align: center;
padding: 10px;
font-size: 1.3em;
}
</style>
</head>
<body>
<div class="output"></div>
<script>
const output = document.querySelector('.output');
const message = document.createElement('div');
message.classList.add('message');
document.body.prepend(message);
message.textContent = "Press to Start";
const box = document.createElement('div');
const game = {
timer: 0,
start: null
};
box.classList.add('box');
output.append(box);
box.addEventListener('click', (e) => {
box.textContent = "";
box.style.display = 'none';
game.timer = setTimeout(addBox, ranNum(3000));
if (!game.start) {
message.textContent = 'Loading....';
} else {
const cur = new Date().getTime();
const dur = (cur - game.start) / 1000;
message.textContent = `It took ${dur} seconds to click`;
}
})
function addBox() {
message.textContent = 'Click it...';
game.start = new Date().getTime();
box.style.display = 'block';
box.style.left = ranNum(450) + 'px';
box.style.top = ranNum(450) + 'px';
}
function ranNum(max) {
return Math.floor(Math.random() * max);
}
</script>
</body>
</html>
Chapter 10__/capture exercise
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<!doctype html>
<html>
<head>
<title>JS Tester</title>
<style>
.box {
width: 200px;
height: 100px;
border: 1px solid black
}
</style>
</head>
<body>
<div class="container">
<div class="box" id="box0">Box #1</div>
<div class="box" id="box1">Box #2</div>
<div class="box" id="box2">Box #3</div>
<div class="box" id="box3">Box #4</div>
</div>
<script>
const main = document.querySelector(".container");
const boxes = document.querySelectorAll(".box");
main.addEventListener("click", (e) => {
console.log("4");
},false);
main.addEventListener("click", (e) => {
console.log("1");
},true);
boxes.forEach(ele => {
ele.addEventListener("click", (e) => {
console.log("3");
console.log(e.target.textContent);
},false);
ele.addEventListener("click", (e) => {
console.log("2");
console.log(e.target.textContent);
},true);
})
</script>
</body>
</html>
Chapter 10__/element attributes
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<!DOCTYPE html>
<html>
<head>
<title>Complete JavaScript Course</title>
</head>
<body>
<div id="message"></div>
<div id="output"></div>
<script>
const message = document.querySelector("#message");
const myArray = ["Laurence", "Mike", "John", "Larry", "Kim", "Joanne", "Lisa", "Janet", "Jane"];
build();
addClicks();
function build() {
let html = "<h1>My Friends Table</h1><table>";
myArray.forEach((item, index) => {
html += `<tr class="box" data-row="${index+1}" data-name="${item}"><td>${item}</td>`;
html += `<td >${index + 1}</td></tr>`;
})
html += "</table>";
document.getElementById("output").innerHTML = html;
}
function addClicks() {
const boxes = document.querySelectorAll(".box");
boxes.forEach((el) => {
el.addEventListener("click", (e) => {
let temp = el.getAttribute("data-row");
let tempName = el.getAttribute("data-name");
message.innerHTML = `${tempName } is in row #${temp}`;
})
})
}
</script>
</body>
</html>
Chapter 10__/ex 10 Drag and drop
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<!doctype html>
<html>
<head>
<title>JS Tester</title>
<style>
.box {
width: 100px;
height: 100px;
border: 1px solid black;
background-color: white;
}
.red {
background-color: red;
}
</style>
</head>
<body>
<div class="box">1
<div id="dragme" draggable="true">
Drag Me Please!
</div>
</div>
<div class="box">2</div>
<script>
const dragme = document.querySelector("#dragme");
dragme.addEventListener("dragstart", (e) => {
dragme.style.opacity = .5;
})
dragme.addEventListener("dragend", (e) => {
dragme.style.opacity = "";
})
const boxes = document.querySelectorAll(".box");
boxes.forEach(box => {
box.addEventListener("dragenter", (e) => {
e.target.classList.add('red');
})
box.addEventListener("dragover", (e) => {
e.preventDefault();
});
box.addEventListener("dragleave", (e) => {
//console.log("leave");
e.target.classList.remove('red');
});
box.addEventListener("drop", (e) => {
e.preventDefault();
console.log("dropped");
e.target.appendChild(dragme);
});
})
function dragStart(e) {
console.log("Started");
}
</script>
</body>
</html>
Chapter 10__/ex1 darkmode
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let darkMode = false;
window.onclick = () => {
console.log(darkMode);
if (!darkMode) {
document.body.style.backgroundColor = "black";
document.body.style.color = "white";
darkMode = true;
} else {
document.body.style.backgroundColor = "white";
document.body.style.color = "black";
darkMode = false;
}
}
Chapter 10__/ex11 box mover
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<!doctype html>
<html>
<style>
div {
background-color: purple;
width: 100px;
height: 100px;
position: absolute;
}
</style>
<body>
<div id="block"></div>
<script>
const main = document.querySelector("#block");
let mover = { speed: 10, dir: 1, pos: 0 };
main.addEventListener("click", moveBlock);
function moveBlock() {
let x = 30;
setInterval(function () {
if (x < 1) {
clearInterval();
} else {
if (mover.pos > 800 || mover.pos < 0) {
mover.dir *= -1;
}
x--;
mover.pos += x * mover.dir;
main.style.left = mover.pos + "px";
console.log(mover.pos);
}
}, 2);
}
</script>
</body>
</html>
Chapter 10__/ex2 Page onload
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<!doctype html>
<html>
<head>
<title>JS Tester</title>
</head>
<body>   
<script>       
document.addEventListener("DOMContentLoaded", (e) => {
message("Document ready", e);
});
window.onload = (e) => {
message("Window ready", e);
}
function message(val, event) {
console.log(event);
console.log(val);
}
</script>
</body>
</html>
Chapter 10__/ex3 Mouse events
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<!doctype html>
<html>
<head>
<title>JS Tester</title>
</head>
<body> 
<div class="output"></div> 
<script>       
const output = document.querySelector(".output");
output.textContent = "hello world";
output.style.height = "200px";
output.style.width = "400px";
output.style.backgroundColor = "red";
output.addEventListener("mousedown", function (e) {
message("green", e);
})
output.addEventListener("mouseover", function (e) {
message("red", e);
})
output.addEventListener("mouseout", function (e) {
message("yellow", e);
})
output.addEventListener("mouseup", function (e) {
message("blue", e);
})
function message(elColor, event) {
console.log(event.type);
output.style.backgroundColor = elColor;
}
</script>
</body>
</html>
Chapter 10__/ex4 analytics
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<!doctype html>
<html>
<head>
<title>JS Tester</title>
<style>.box{width:200px;height:100px;border:1px solid black}</style>
</head>
<body> 
<div class="container">
<div class="box" id="box0">Box #1</div>
<div class="box" id="box1">Box #2</div>
<div class="box" id="box2">Box #3</div>
<div class="box" id="box3">Box #4</div>
</div> 
<script>     
const counter = []; 
const main = document.querySelector('.container');
main.addEventListener('click',tracker);
function tracker(e){
const el = e.target;
if(el.id){
const temp = {};
temp.content = el.textContent;
temp.id = el.id;
temp.tagName = el.tagName;
temp.class = el.className;
console.dir(el);
counter.push(temp);
console.log(counter);
}
}
</script>
</body>
</html>
Chapter 10__/ex5 UseCapture
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<!doctype html>
<html>
<head>
<title>JS Tester</title>
<style>
.box {
width: 200px;
height: 100px;
border: 1px solid black
}
</style>
</head>
<body> 
<div class="container">
<div class="box" id="box0">Box #1</div>
<div class="box" id="box1">Box #2</div>
<div class="box" id="box2">Box #3</div>
<div class="box" id="box3">Box #4</div>
</div> 
<script>     
const main = document.querySelector(".container");
const boxes = document.querySelectorAll(".box");
main.addEventListener("click", (e) => {
console.log("4");
},false);
main.addEventListener("click", (e) => {
console.log("1");
},true);
boxes.forEach(ele => {
ele.addEventListener("click", (e) => {
console.log("3");
},false);
ele.addEventListener("click", (e) => {
console.log("2");
},true);
})
</script>
</body>
</html>
Chapter 10__/ex6 Event Change
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<!doctype html>
<html>
<head>
<title>JS Tester</title>
</head>
<body> 
<div class="output1">
</div>
<input type="text" placeholder="First Name" name="first"><br>
<input type="text" placeholder="Last Name" name="last"><br>
<script>     
const output = document.querySelector(".output1");
const in1 = document.querySelector("input[name='first']");
const in2 = document.querySelector("input[name='last']");
in1.addEventListener("change", (e) => {
console.log("change");
updater(in1.value);
})
in1.addEventListener("blur", (e) => {
console.log("blur");
})
in1.addEventListener("focus", (e) => {
console.log("focus");
})
in2.addEventListener("change", (e) => {
console.log("change");
updater(in2.value);
})
in2.addEventListener("blur", (e) => {
console.log("blur");
})
in2.addEventListener("focus", (e) => {
console.log("focus");
})
function updater(str) {
output.textContent = str;
}
</script>
</body>
</html>
Chapter 10__/ex7 Image Generator
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<!doctype html>
<html>
<head>
<title>JS Tester</title>
</head>
<body>
<div class="container">
Size: <select id="iSize">
            <option value="">Select</option>
            <option value="150x150">Small</option>
            <option value="350x150" selected>Medium</option>
            <option value="750x150">Large</option>
        </select>
<br>Add Text: <input id="iText" type="text" value="Hello World">
<br>Select Color: <input id="iColor" type="color" value="222">
<br>Preview:<br><img src="" id="myImage">
   
</div>
<script>
const base = "http://via.placeholder.com/";
const myImage = document.querySelector("#myImage");
const myArr = { iColor: "222", iText: "Hello World", iSize: "350x150" };
const container = document.querySelector(".container");
const eles = container.querySelectorAll("select,input");
eles.forEach(el => {
el.addEventListener("change", (e) => {
console.log(el);
let val = el.value.replace("#", "");
myArr[el.id] = val;
let temp = base + myArr.iSize + "/" + myArr.iColor + "/fff?text=" + myArr.iText;
console.log(temp);
myImage.src = temp;
})
})
</script>
</body>
</html>
Chapter 10__/ex8 Input Number checker
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<!doctype html>
<html>
<head>
<title>JS Tester</title>
</head>
<body>
<div class="output"></div>
    <input type="text" name="myNum1">
    <input type="text" name="myNum2">
<script>
const eles = document.querySelectorAll("input");
const output = document.querySelector(".output");
eles.forEach(el => {
el.addEventListener("keydown", (e) => {
if (!isNaN(e.key)) {
output.textContent += e.key;
}
})
el.addEventListener("keydown", (e) => {
console.log(e.key);
})
el.addEventListener("paste", (e) => {
console.log('pasted');
})
})
</script>
</body>
</html>
Chapter 10__/ex9 Form checker
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<!doctype html>
<html>
<head>
<title>JS Tester</title>
</head>
<body>
<form action="index2.html" method="get">
First: <input type="text" name="first">
<br>Last: <input type="text" name="last">
<br>Age: <input type="number" name="age">
<br><input type="submit" value="submit">
</form>
<script>
const form = document.querySelector("form");
const email = document.querySelector("#email");
form.addEventListener("submit", (e) => {
let error = false;
if (checker(form.first.value)) {
console.log("First Name needed");
error = true;
}
if (checker(form.last.value)) {
console.log("Last Name needed");
error = true;
}
if (form.age.value < 19) {
console.log("You must be 19 or over");
error = true;
}
if (error) {
e.preventDefault();
console.log("please review the form");
}
})
function checker(val) {
console.log(val.length);
if (val.length < 6) {
return true;
}
return false;
}
</script>
</body>
</html>
Chapter 10__/keyword this button example
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<!doctype html>
<html>
<head>
<title>JS Tester</title>
</head>
<body>
<div>
<button>Button 1</button>
<button>Button 2</button>
<button>Button 3</button>
</div>
<script>
const btns = document.querySelectorAll('button');
btns.forEach((btn)=>{
function output(){
console.log(this.textContent);
}
btn.addEventListener("click",output);
})
</script>
</body>
</html>
Chapter 9__/ex2
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<body>
<div id="one">Hello World</div>
<script>
const myEle = document.getElementById("one");
console.log(myEle);
</script>
</body>
Chapter 9__/ex3
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<div >Hello World 1</div>
<div >Hello World 2</div>
<div >Hello World 3</div>
<script>
const myEles = document.getElementsByTagName("div");
console.log(myEles[1]);
</script>
Chapter 9__/ex4
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<body>
<div class="ele">Hello World 1</div>
<div >Hello World 2</div>
<div class="ele">Hello World 3</div>
<script>
const myEles = document.getElementsByClassName("ele");
console.log(myEles[0]);
</script>
</body>
Chapter 9__/mouseEvents
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<!DOCTYPE html>
<html>
<head>
<title>Complete JavaScript Course</title>
<style>
.holder {
display: inline-block;
width: 300px;
height: 300px;
border: 1px solid black;
padding: 10px;
}
.active {
background-color: red;
}
</style>
</head>
<body> 
  <div class="holder">   
    <div id="output"></div>   
</div>   
<script>     
const ele = document.querySelector('.holder');
ele.addEventListener('mouseover', () => { this.classList.add('active'); })
ele.addEventListener('mouseout', () => { this.classList.remove('active'); })
ele.addEventListener('mousemove', coordin);
function coordin() {
let html = "X:" + event.clientX + " | Y:" + event.clientY;
document.getElementById('output').innerHTML = html;
}
</script>
</body>
</html>
Chapter 9__/shoppingList
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<!DOCTYPE html>
<html>
<head>    <title>Complete JavaScript Course</title>   
</head>
<body>   
    <div> 
<input type="text" id="addItem">       
<input type="button" id="addNew" value="Add to List">
</div>      
  <h1>Shopping List</h1> 
<ol id="sList"> </ol> 
 
<script> 
const myItem = document.querySelector('#addItem');
const btn = document.querySelector('#addNew');
const myList = document.querySelector('#sList');
btn.addEventListener('click', (e) => {
let val = myItem.value;
const li = document.createElement('li');
li.textContent = val;
myList.append(li);
})
</script>
</body>
</html>
Chapter 9__/star project
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<!DOCTYPE html>
<html>
<head>
<title>Star Rater</title>
<style>
.stars ul {
list-style-type: none;
padding: 0;
}
.star {
font-size: 2em;
color: #ddd;
display: inline-block;
}
.orange {
color: orange;
}
.output {
background-color: #ddd;
}
</style>
</head>
<body>
<ul class="stars">
<li class="star">&#10029;</li>
<li class="star">&#10029;</li>
<li class="star">&#10029;</li>
<li class="star">&#10029;</li>
<li class="star">&#10029;</li>
</ul>
<div class="output"></div>
<script>
const starsUL = document.querySelector('.stars');
const output = document.querySelector('.output');
const stars = document.querySelectorAll('.star');
stars.forEach((star, index) => {
star.starValue = (index + 1);
star.addEventListener('click', starRate);
})
function starRate(e) {
output.innerHTML = `You Rated this ${e.target.starValue} stars`;
stars.forEach((star, index) => {
if (index < e.target.starValue) {
star.classList.add('orange');
} else {
star.classList.remove('orange');
}
})
}
</script>
</body>
</html>
Chapter 9__/voter
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<!DOCTYPE html>
<html>
<head>    <title>Complete JavaScript Course</title>   
</head>
<body>   
<div id="message">Complete JavaScript Course</div>   
<div>     
<input type="text" id="addFriend">
<input type="button" id="addNew" value="Add Friend">
</div>   
<table id="output"></table>   
<script>
window.onload = build;
const myArray = ["Laurence", "Mike", "John", "Larry"];
const message = document.getElementById('message');
const addNew = document.getElementById('addNew');
const newInput = document.getElementById('addFriend');
const output = document.getElementById('output');
addNew.onclick = function () {
const newFriend = newInput.value;
adder(newFriend, myArray.length, 0);
myArray.push(newFriend);
}
function build() {
myArray.forEach((item, index) => {
adder(item, index, 0)
})
}
function adder(name, index, counter) {
const tr = document.createElement('tr');
const td1 = document.createElement('td');
td1.classList.add('box');
td1.textContent = index + 1;
const td2 = document.createElement('td');
td2.textContent = name;
const td3 = document.createElement('td');
td3.textContent = counter;
tr.append(td1);
tr.append(td2);
tr.append(td3);
tr.addEventListener('click', (e) => {
console.log(tr.lastChild);
let val = Number(tr.lastChild.textContent);
val++;
tr.lastChild.textContent = val;
})
output.appendChild(tr);
}
</script>
</body>
</html>