Michael Czechowski
ae8f9fef45
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
4.8 KiB
JSON
140 lines
4.8 KiB
JSON
{
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"$schema": "../schemas/code-crispies-module-schema.json",
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"id": "js-variables",
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"title": "JS Variables",
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"description": "Learn to declare variables with let and const, and work with basic data types in JavaScript.",
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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-const",
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"title": "Constants",
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"description": "Use <kbd>const</kbd> to declare a variable that cannot be reassigned. Constants are the default choice for most values in modern JavaScript.",
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"task": "Declare a constant named <kbd>name</kbd> with the value <kbd>\"Alice\"</kbd>",
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"previewHTML": "<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 = name;",
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"solution": "const name = \"Alice\";",
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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": "const",
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"message": "Use <kbd>const</kbd> to declare the variable"
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},
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{
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"type": "regex",
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"value": "const\\s+name\\s*=",
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"message": "Declare a constant called <kbd>name</kbd>"
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},
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{
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"type": "regex",
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"value": "\"Alice\"|'Alice'|`Alice`",
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"message": "Set the value to <kbd>\"Alice\"</kbd>"
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}
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]
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},
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{
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"id": "js-let",
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"title": "Let Variables",
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"description": "Use <kbd>let</kbd> to declare variables that you plan to reassign later. Unlike <kbd>const</kbd>, a <kbd>let</kbd> variable can change its value.",
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"task": "Declare a variable <kbd>count</kbd> with <kbd>let</kbd> set to <kbd>0</kbd>, then reassign it to <kbd>5</kbd>",
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"previewHTML": "<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 = count;",
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"solution": "let count = 0;\ncount = 5;",
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"previewContainer": "preview-area",
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"validations": [
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{
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"type": "regex",
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"value": "let\\s+count\\s*=\\s*0",
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"message": "Start with <kbd>let count = 0;</kbd>"
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},
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{
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"type": "regex",
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"value": "count\\s*=\\s*5",
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"message": "Reassign count to <kbd>5</kbd>"
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}
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]
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},
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{
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"id": "js-string",
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"title": "Template Literals",
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"description": "Template literals use backticks <kbd>`</kbd> and <kbd>${}</kbd> to embed expressions inside strings. This makes building dynamic text much easier than string concatenation.",
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"task": "Create a constant <kbd>msg</kbd> using a template literal: <kbd>`Hello, ${name}!`</kbd>",
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"previewHTML": "<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": "const name = \"World\";\n",
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"codeSuffix": "\ndocument.getElementById('out').textContent = msg;",
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"solution": "const msg = `Hello, ${name}!`;",
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"previewContainer": "preview-area",
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"validations": [
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{
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"type": "regex",
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"value": "const\\s+msg\\s*=",
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"message": "Declare a constant called <kbd>msg</kbd>"
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},
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{
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"type": "contains",
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"value": "${name}",
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"message": "Use <kbd>${name}</kbd> inside backticks to embed the variable"
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},
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{
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"type": "regex",
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"value": "`.*\\$\\{name\\}.*`",
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"message": "Wrap the whole string in backticks <kbd>`</kbd>"
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}
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]
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},
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{
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"id": "js-array",
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"title": "Arrays",
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"description": "Arrays store ordered lists of values in square brackets. Access items by index (starting at 0) and use <kbd>.length</kbd> to get the count.",
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"task": "Create a constant <kbd>colors</kbd> with an array: <kbd>[\"red\", \"green\", \"blue\"]</kbd>",
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"previewHTML": "<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 = colors.join(', ');",
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"solution": "const colors = [\"red\", \"green\", \"blue\"];",
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"previewContainer": "preview-area",
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"validations": [
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{
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"type": "regex",
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"value": "const\\s+colors\\s*=",
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"message": "Declare a constant called <kbd>colors</kbd>"
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},
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{
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"type": "contains",
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"value": "[",
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"message": "Use square brackets <kbd>[</kbd> to create an array"
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},
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{
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"type": "regex",
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"value": "(\"red\"|'red'|`red`)",
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"message": "Include <kbd>\"red\"</kbd> in the array"
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},
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{
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"type": "regex",
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"value": "(\"green\"|'green'|`green`)",
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"message": "Include <kbd>\"green\"</kbd> in the array"
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},
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{
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"type": "regex",
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"value": "(\"blue\"|'blue'|`blue`)",
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"message": "Include <kbd>\"blue\"</kbd> in the array"
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}
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]
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}
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]
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}
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