Initial commit: Elm tutorial for JavaScript developers

This tutorial includes: - 7 progressive lessons covering Elm fundamentals - Exercises with starter code - Solutions for exercises - Final project: Task Manager app with localStorage persistence Topics covered: - Basic syntax and types - Functions and functional programming concepts - The Elm Architecture (Model-View-Update) - Lists and Maybe types - HTTP requests and JSON decoding - Ports for JavaScript interop
2026-03-11 11:07:15 +00:00
commit 7d7986f3ab
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--- a/projects/task-manager/index.html
+++ b/projects/task-manager/index.html
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+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Task Manager - Elm Tutorial Final Project</title>
+    <style>
+        * {
+            box-sizing: border-box;
+            margin: 0;
+            padding: 0;
+        }
+
+        body {
+            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
+            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+            min-height: 100vh;
+            padding: 40px 20px;
+        }
+
+        .container {
+            max-width: 500px;
+            margin: 0 auto;
+            background: white;
+            border-radius: 12px;
+            box-shadow: 0 10px 40px rgba(0,0,0,0.2);
+            padding: 30px;
+        }
+
+        h1 {
+            text-align: center;
+            color: #333;
+            margin-bottom: 30px;
+            font-size: 2rem;
+        }
+
+        .input-section {
+            display: flex;
+            gap: 10px;
+            margin-bottom: 20px;
+        }
+
+        .input-section input {
+            flex: 1;
+            padding: 12px 15px;
+            border: 2px solid #e0e0e0;
+            border-radius: 8px;
+            font-size: 16px;
+            transition: border-color 0.2s;
+        }
+
+        .input-section input:focus {
+            outline: none;
+            border-color: #667eea;
+        }
+
+        .input-section button {
+            padding: 12px 24px;
+            background: #667eea;
+            color: white;
+            border: none;
+            border-radius: 8px;
+            font-size: 16px;
+            cursor: pointer;
+            transition: background 0.2s;
+        }
+
+        .input-section button:hover {
+            background: #5a67d8;
+        }
+
+        .filters {
+            display: flex;
+            gap: 10px;
+            margin-bottom: 20px;
+            justify-content: center;
+        }
+
+        .filters button {
+            padding: 8px 16px;
+            border: 2px solid #e0e0e0;
+            background: white;
+            border-radius: 20px;
+            cursor: pointer;
+            transition: all 0.2s;
+        }
+
+        .filters button:hover {
+            border-color: #667eea;
+        }
+
+        .filters button.active {
+            background: #667eea;
+            border-color: #667eea;
+            color: white;
+        }
+
+        .task-list {
+            list-style: none;
+        }
+
+        .task-list li {
+            display: flex;
+            align-items: center;
+            padding: 15px;
+            border-bottom: 1px solid #f0f0f0;
+            transition: background 0.2s;
+        }
+
+        .task-list li:hover {
+            background: #f9f9f9;
+        }
+
+        .task-list li.completed .task-description {
+            text-decoration: line-through;
+            color: #999;
+        }
+
+        .task-list input[type="checkbox"] {
+            width: 20px;
+            height: 20px;
+            margin-right: 15px;
+            cursor: pointer;
+        }
+
+        .task-description {
+            flex: 1;
+            font-size: 16px;
+        }
+
+        .delete-btn {
+            background: none;
+            border: none;
+            color: #ff6b6b;
+            font-size: 18px;
+            cursor: pointer;
+            opacity: 0;
+            transition: opacity 0.2s;
+        }
+
+        .task-list li:hover .delete-btn {
+            opacity: 1;
+        }
+
+        .empty-message {
+            text-align: center;
+            color: #999;
+            padding: 40px;
+            font-style: italic;
+        }
+
+        .footer {
+            display: flex;
+            justify-content: space-between;
+            align-items: center;
+            margin-top: 20px;
+            padding-top: 15px;
+            border-top: 1px solid #f0f0f0;
+            color: #666;
+            font-size: 14px;
+        }
+
+        .footer button {
+            background: none;
+            border: none;
+            color: #999;
+            cursor: pointer;
+            text-decoration: underline;
+        }
+
+        .footer button:hover {
+            color: #333;
+        }
+    </style>
+</head>
+<body>
+    <div id="app"></div>
+
+    <script src="elm.js"></script>
+    <script>
+        // Load saved tasks from localStorage
+        const savedTasks = localStorage.getItem('elm-tasks');
+        const initialTasks = savedTasks ? JSON.parse(savedTasks) : [];
+
+        // Initialize Elm app with saved tasks
+        const app = Elm.Main.init({
+            node: document.getElementById('app'),
+            flags: initialTasks
+        });
+
+        // Listen for save commands from Elm
+        app.ports.saveTasks.subscribe(function(tasks) {
+            localStorage.setItem('elm-tasks', JSON.stringify(tasks));
+        });
+    </script>
+</body>
+</html>