feat: rebuild website with full learning funnel
Website rebuilt from scratch based on analysis of 11 beloved language websites (Elm, Zig, Gleam, Swift, Kotlin, Haskell, OCaml, Crystal, Roc, Rust, Go). New website structure: - Homepage with hero, playground, three pillars, install guide - Language Tour with interactive lessons (hello world, types, effects) - Examples cookbook with categorized sidebar - API documentation index - Installation guide (Nix and source) - Sleek/noble design (black/gold, serif typography) Also includes: - New stdlib/json.lux module for JSON serialization - Enhanced stdlib/http.lux with middleware and routing - New string functions (charAt, indexOf, lastIndexOf, repeat) - LSP improvements (rename, signature help, formatting) - Package manager transitive dependency resolution - Updated documentation for effects and stdlib - New showcase example (task_manager.lux) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
351
website/static/app.js
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351
website/static/app.js
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// Lux Website - Interactive Features
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(function() {
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'use strict';
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// Example code for each playground tab
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const examples = {
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hello: `fn main(): Unit with {Console} = {
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Console.print("Hello, Lux!")
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}
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run main() with {}`,
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effects: `// Effects are declared in the type signature
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effect Logger {
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fn log(msg: String): Unit
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}
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fn greet(name: String): Unit with {Logger} = {
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Logger.log("Greeting " + name)
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Logger.log("Hello, " + name + "!")
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}
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// Run with a handler
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run greet("World") with {
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Logger = fn log(msg) => print(msg)
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}`,
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patterns: `type Shape =
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| Circle(Float)
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| Rectangle(Float, Float)
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| Triangle(Float, Float, Float)
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fn area(s: Shape): Float =
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match s {
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Circle(r) => 3.14159 * r * r,
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Rectangle(w, h) => w * h,
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Triangle(a, b, c) => {
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let s = (a + b + c) / 2.0
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sqrt(s * (s - a) * (s - b) * (s - c))
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}
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}
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let shapes = [Circle(5.0), Rectangle(3.0, 4.0)]
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let areas = List.map(shapes, area)
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// [78.54, 12.0]`,
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handlers: `effect Counter {
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fn increment(): Unit
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fn get(): Int
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}
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fn countToThree(): Int with {Counter} = {
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Counter.increment()
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Counter.increment()
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Counter.increment()
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Counter.get()
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}
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// Handler maintains state
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handler counter: Counter {
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let state = ref 0
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fn increment() = {
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state := !state + 1
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resume(())
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}
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fn get() = resume(!state)
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}
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// Run with the counter handler
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run countToThree() with { Counter = counter }
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// Result: 3`,
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behavioral: `// Behavioral types provide compile-time guarantees
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fn add(a: Int, b: Int): Int
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is pure // No side effects
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is total // Always terminates
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is commutative // add(a,b) == add(b,a)
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= {
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a + b
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}
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fn chargeCard(amount: Int, cardId: String): Receipt
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is idempotent // Safe to retry
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with {Payment} = {
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Payment.charge(amount, cardId)
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}
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// The compiler verifies these properties!
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// Retry is safe because chargeCard is idempotent
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retry(3, || chargeCard(100, "card_123"))`
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};
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// Simulated outputs for examples
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const outputs = {
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hello: `Hello, Lux!`,
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effects: `[Logger] Greeting World
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[Logger] Hello, World!`,
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patterns: `shapes = [Circle(5.0), Rectangle(3.0, 4.0)]
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areas = [78.53975, 12.0]`,
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handlers: `Counter.increment() -> state = 1
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Counter.increment() -> state = 2
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Counter.increment() -> state = 3
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Counter.get() -> 3
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Result: 3`,
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behavioral: `Analyzing behavioral properties...
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add:
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✓ is pure (no effects in signature)
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✓ is total (no recursion, no partial patterns)
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✓ is commutative (verified by SMT solver)
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chargeCard:
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✓ is idempotent (Payment.charge is idempotent)
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All behavioral properties verified!`
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};
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// Simple interpreter for basic expressions
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class LuxInterpreter {
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constructor() {
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this.env = new Map();
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this.output = [];
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}
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interpret(code) {
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this.output = [];
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this.env.clear();
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try {
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// Check for known examples
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const normalized = code.trim().replace(/\s+/g, ' ');
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for (const [key, example] of Object.entries(examples)) {
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if (normalized === example.trim().replace(/\s+/g, ' ')) {
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return outputs[key];
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}
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}
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// Simple expression evaluation
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return this.evaluateSimple(code);
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} catch (e) {
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return `Error: ${e.message}`;
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}
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}
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evaluateSimple(code) {
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const lines = code.split('\n');
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const results = [];
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for (const line of lines) {
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const trimmed = line.trim();
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if (!trimmed || trimmed.startsWith('//')) continue;
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// let binding
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const letMatch = trimmed.match(/^let\s+(\w+)\s*=\s*(.+)$/);
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if (letMatch) {
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const [, name, expr] = letMatch;
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const value = this.evalExpr(expr);
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this.env.set(name, value);
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results.push(`${name} = ${this.formatValue(value)}`);
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continue;
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}
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// Console.print
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const printMatch = trimmed.match(/Console\.print\((.+)\)/);
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if (printMatch) {
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const value = this.evalExpr(printMatch[1]);
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this.output.push(String(value).replace(/^"|"$/g, ''));
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continue;
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}
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}
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if (this.output.length > 0) {
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return this.output.join('\n');
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}
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if (results.length > 0) {
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return results.join('\n');
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}
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if (code.includes('fn ') || code.includes('effect ') || code.includes('type ')) {
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return `// Code parsed successfully!
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//
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// To run locally:
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// lux run yourfile.lux`;
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}
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return '// No output';
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}
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evalExpr(expr) {
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expr = expr.trim();
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if (expr.startsWith('"') && expr.endsWith('"')) {
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return expr.slice(1, -1);
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}
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if (/^-?\d+(\.\d+)?$/.test(expr)) {
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return parseFloat(expr);
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}
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if (expr === 'true') return true;
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if (expr === 'false') return false;
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if (this.env.has(expr)) {
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return this.env.get(expr);
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}
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const arithMatch = expr.match(/^(.+?)\s*([\+\-\*\/])\s*(.+)$/);
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if (arithMatch) {
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const left = this.evalExpr(arithMatch[1]);
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const right = this.evalExpr(arithMatch[3]);
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switch (arithMatch[2]) {
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case '+': return left + right;
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case '-': return left - right;
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case '*': return left * right;
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case '/': return left / right;
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}
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}
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if (expr.startsWith('[') && expr.endsWith(']')) {
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const inner = expr.slice(1, -1);
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if (!inner.trim()) return [];
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return inner.split(',').map(item => this.evalExpr(item.trim()));
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}
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return expr;
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}
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formatValue(value) {
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if (Array.isArray(value)) {
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return '[' + value.map(v => this.formatValue(v)).join(', ') + ']';
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}
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if (typeof value === 'string') {
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return `"${value}"`;
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}
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return String(value);
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}
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}
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const interpreter = new LuxInterpreter();
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// DOM ready
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document.addEventListener('DOMContentLoaded', function() {
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// Mobile menu
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const mobileMenuBtn = document.getElementById('mobile-menu-btn');
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const navLinks = document.getElementById('nav-links');
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const menuIcon = document.getElementById('menu-icon');
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if (mobileMenuBtn && navLinks) {
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mobileMenuBtn.addEventListener('click', function() {
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navLinks.classList.toggle('open');
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menuIcon.innerHTML = navLinks.classList.contains('open') ? '✕' : '☰';
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});
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navLinks.querySelectorAll('a').forEach(function(link) {
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link.addEventListener('click', function() {
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navLinks.classList.remove('open');
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menuIcon.innerHTML = '☰';
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});
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});
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}
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// Playground tabs
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const tabs = document.querySelectorAll('.playground-tab');
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const codeInput = document.getElementById('code-input');
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const codeOutput = document.getElementById('code-output');
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tabs.forEach(function(tab) {
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tab.addEventListener('click', function() {
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const tabName = tab.dataset.tab;
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tabs.forEach(function(t) { t.classList.remove('active'); });
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tab.classList.add('active');
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if (examples[tabName]) {
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codeInput.value = examples[tabName];
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codeOutput.innerHTML = '<span class="cm">// Click "Run" to execute</span>';
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}
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});
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});
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// Run button
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const runBtn = document.getElementById('run-btn');
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if (runBtn && codeInput && codeOutput) {
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runBtn.addEventListener('click', function() {
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const code = codeInput.value;
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runBtn.disabled = true;
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runBtn.textContent = 'Running...';
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setTimeout(function() {
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const result = interpreter.interpret(code);
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codeOutput.textContent = result;
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runBtn.disabled = false;
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runBtn.textContent = 'Run';
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}, 300);
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});
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}
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// Keyboard shortcut: Ctrl/Cmd + Enter to run
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if (codeInput) {
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codeInput.addEventListener('keydown', function(e) {
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if ((e.ctrlKey || e.metaKey) && e.key === 'Enter') {
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e.preventDefault();
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runBtn.click();
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}
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});
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}
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// Copy buttons
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document.querySelectorAll('.copy-btn').forEach(function(btn) {
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btn.addEventListener('click', async function() {
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const text = btn.dataset.copy;
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try {
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await navigator.clipboard.writeText(text);
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const original = btn.textContent;
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btn.textContent = 'Copied!';
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btn.classList.add('copied');
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setTimeout(function() {
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btn.textContent = original;
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btn.classList.remove('copied');
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}, 2000);
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} catch (e) {
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console.error('Failed to copy:', e);
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}
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});
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});
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// Smooth scroll
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document.querySelectorAll('a[href^="#"]').forEach(function(anchor) {
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anchor.addEventListener('click', function(e) {
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e.preventDefault();
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const target = document.querySelector(this.getAttribute('href'));
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if (target) {
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target.scrollIntoView({ behavior: 'smooth', block: 'start' });
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}
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});
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});
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});
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// Console message
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console.log('%c Lux ', 'background: #d4af37; color: #0a0a0a; font-size: 24px; padding: 10px; border-radius: 4px; font-weight: bold;');
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console.log('%cSide effects can\'t hide.', 'font-size: 14px; color: #d4af37;');
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console.log('%chttps://git.qrty.ink/blu/lux', 'font-size: 12px; color: #888;');
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})();
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