Front-end libraries (React, Vue, Angular) and the basic principles of how they work, all in a single file using pure JavaScript (VanillaJS).
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>My React from Scratch</title>
</head>
<body>
<script>
// Stateful logic with hooks
let currentComponent = null;
function useState(initialValue) {
if (!currentComponent) {
throw new Error('useState must be called within a component');
}
const stateIndex = currentComponent.stateIndex;
if (!currentComponent.state[stateIndex]) {
currentComponent.state[stateInde...
Read more at gist.github.com