JavaScript
How to Use URL
script.js
// AZUL CODING ---------------------------------------
// JavaScript - How to Use URLSearchParams
// https://youtu.be/KUN0Vkn207k
var urlParams = new URLSearchParams(window.location.search);
if (urlParams.has("red")) addvalue("red", urlParams.get("red"));
if (urlParams.has("green")) addvalue("green", urlParams.get("green"));
if (urlParams.has("blue")) addvalue("blue", urlParams.get("blue"));
for (let p of urlParams) {
console.log(p[0] + " : " + p[1]);
}
function randomise() {
var urlParams = new URLSearchParams();
urlParams.set("red", Math.round(Math.random() * 255));
urlParams.set("green", Math.round(Math.random() * 255));
urlParams.set("blue", Math.round(Math.random() * 255));
window.location.href = "/?" + urlParams.toString();
}
function addvalue(name, val) {
const element = document.getElementById(name).innerText = val;
}index.html
<!-- AZUL CODING --------------------------------------- -->
<!-- JavaScript - How to Use URLSearchParams -->
<!-- https://youtu.be/KUN0Vkn207k -->
<!DOCTYPE html>
<html>
<head>
<title>URLSearchParams</title>
<style>
body {
margin: 30px;
font-family: 'Roboto';
}
table {
text-align: left;
border-spacing: 0;
}
h2 {
margin: 0;
padding-right: 20px;
}
button {
margin-top: 30px;
font-size: 16px;
font-family: 'Roboto';
}
</style>
</head>
<body>
<h1>URLSearchParams</h1>
<table>
<tr>
<th><h2 style="color:red">Red</h2></th>
<td><h2 id="red">0</h2></td>
</tr>
<tr>
<th><h2 style="color:green">Green</h2></th>
<td><h2 id="green">0</h2></td>
</tr>
<tr>
<th><h2 style="color:blue">Blue</h2></th>
<td><h2 id="blue">0</h2></td>
</tr>
</table>
<button onclick="randomise();">Random</button>
<script src="script.js"></script>
</body>
</html>
