Michael Czechowski
b9c90112a3
Implementation following plan: - S01: Foundation: schema, section config, and router - S02: Install CodeMirror JavaScript language support - S03: Create JavaScript lesson JSON files (variables, DOM, events) - S04: Register JavaScript lessons in module stores - S05: Add JavaScript validation logic - S06: Add JavaScript mode to LessonEngine preview rendering - S07: Add JavaScript mode to CodeEditor - S08: Update app.js for JavaScript mode support - S09: Update navigation HTML and CSS theming for JavaScript section - S10: Add section grouping headers in sidebar navigation - S11: Update and write tests
140 lines
5.0 KiB
JSON
140 lines
5.0 KiB
JSON
{
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"$schema": "../schemas/code-crispies-module-schema.json",
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"id": "js-dom",
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"title": "JS DOM",
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"description": "Learn to select and modify HTML elements using JavaScript DOM methods like querySelector and textContent.",
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"mode": "javascript",
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"difficulty": "beginner",
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"lessons": [
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{
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"id": "js-query",
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"title": "querySelector",
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"description": "Use <kbd>document.querySelector()</kbd> to find the first element matching a CSS selector. It returns a single element you can then modify.",
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"task": "Select the <kbd>h1</kbd> element and store it in a constant called <kbd>title</kbd>",
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"previewHTML": "<h1>Hello</h1><p id=\"out\">Waiting...</p>",
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"previewBaseCSS": "body { font-family: system-ui, sans-serif; padding: 1rem; }",
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"sandboxCSS": "",
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"initialCode": "",
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"codePrefix": "",
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"codeSuffix": "\ndocument.getElementById('out').textContent = title.tagName;",
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"solution": "const title = document.querySelector('h1');",
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"previewContainer": "preview-area",
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"validations": [
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{
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"type": "contains",
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"value": "querySelector",
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"message": "Use <kbd>document.querySelector()</kbd> to select an element"
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},
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{
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"type": "regex",
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"value": "querySelector\\(['\"`]h1['\"`]\\)",
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"message": "Pass <kbd>'h1'</kbd> as the selector"
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},
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{
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"type": "regex",
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"value": "const\\s+title\\s*=",
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"message": "Store the result in a constant called <kbd>title</kbd>"
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}
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]
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},
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{
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"id": "js-text",
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"title": "textContent",
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"description": "The <kbd>textContent</kbd> property lets you read or change the text inside an element. Setting it replaces all existing text.",
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"task": "Select the <kbd>.msg</kbd> element and set its <kbd>textContent</kbd> to <kbd>\"Done!\"</kbd>",
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"previewHTML": "<p class=\"msg\">Waiting...</p>",
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"previewBaseCSS": "body { font-family: system-ui, sans-serif; padding: 1rem; }",
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"sandboxCSS": "",
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"initialCode": "",
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"codePrefix": "",
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"codeSuffix": "",
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"solution": "document.querySelector('.msg').textContent = \"Done!\";",
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"previewContainer": "preview-area",
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"validations": [
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{
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"type": "contains",
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"value": "querySelector",
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"message": "Use <kbd>querySelector</kbd> to find the element"
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},
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{
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"type": "contains",
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"value": "textContent",
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"message": "Use the <kbd>textContent</kbd> property to change the text"
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},
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{
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"type": "regex",
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"value": "(\"Done!\"|'Done!'|`Done!`)",
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"message": "Set the text to <kbd>\"Done!\"</kbd>"
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}
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]
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},
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{
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"id": "js-style",
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"title": "Inline Styles",
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"description": "Access the <kbd>style</kbd> property to set inline CSS on an element. CSS properties with dashes become camelCase: <kbd>background-color</kbd> becomes <kbd>backgroundColor</kbd>.",
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"task": "Select the <kbd>.box</kbd> element and set its <kbd>style.color</kbd> to <kbd>\"coral\"</kbd>",
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"previewHTML": "<p class=\"box\">Style me!</p>",
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"previewBaseCSS": "body { font-family: system-ui, sans-serif; padding: 1rem; } .box { font-size: 1.5rem; font-weight: bold; }",
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"sandboxCSS": "",
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"initialCode": "",
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"codePrefix": "",
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"codeSuffix": "",
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"solution": "document.querySelector('.box').style.color = \"coral\";",
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"previewContainer": "preview-area",
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"validations": [
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{
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"type": "contains",
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"value": "querySelector",
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"message": "Use <kbd>querySelector</kbd> to find the element"
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},
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{
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"type": "contains",
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"value": ".style.",
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"message": "Use the <kbd>.style</kbd> property to set CSS"
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},
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{
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"type": "regex",
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"value": "style\\.color\\s*=",
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"message": "Set <kbd>style.color</kbd> on the element"
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},
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{
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"type": "regex",
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"value": "(\"coral\"|'coral'|`coral`)",
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"message": "Set the color to <kbd>\"coral\"</kbd>"
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}
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]
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},
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{
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"id": "js-classlist",
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"title": "classList",
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"description": "The <kbd>classList</kbd> property provides methods to add, remove, or toggle CSS classes on an element without touching other classes.",
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"task": "Select the <kbd>.card</kbd> element and add the class <kbd>\"active\"</kbd> using <kbd>classList.add()</kbd>",
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"previewHTML": "<div class=\"card\">Toggle me</div>",
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"previewBaseCSS": "body { font-family: system-ui, sans-serif; padding: 1rem; } .card { padding: 1rem; border: 2px solid gray; border-radius: 8px; } .active { border-color: coral; background: #fff0ee; }",
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"sandboxCSS": "",
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"initialCode": "",
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"codePrefix": "",
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"codeSuffix": "",
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"solution": "document.querySelector('.card').classList.add(\"active\");",
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"previewContainer": "preview-area",
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"validations": [
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{
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"type": "contains",
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"value": "classList",
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"message": "Use the <kbd>classList</kbd> property"
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},
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{
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"type": "regex",
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"value": "classList\\.add\\(",
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"message": "Call <kbd>classList.add()</kbd> to add a class"
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},
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{
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"type": "regex",
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"value": "(\"active\"|'active'|`active`)",
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"message": "Add the class <kbd>\"active\"</kbd>"
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}
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]
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}
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]
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}
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