gpt5-codex is a cli wizard > $ bash -lc 'bun --eval "import('"'"'bun:test'"'"').then(m=>{console.log(Object.keys(m)); console.log(Object.keys(m.test)); console.log(Object.keys(m.it)); console.log(m.it.name); console.log(typeof m.it.if); console.log(typeof m.it.skipIf); console.log(typeof m.it.serialIf); console.log(typeof m.it.concurrent);}).catch(e=>console.error(e))"' [ "test", "it", "xtest", "xit", "describe", "xdescribe", "beforeEach", "beforeAll", "afterAll", "afterEach", "setDefaultTimeout", "expect", "expectTypeOf", "setSystemTime", "mock", "jest", "spyOn", "vi" ] [] [] bound test function function function function

Taming the JavaScript Jungle starts with understanding its quirkiest corners - coercion puzzles (0 == "0", NaN, typeof null), hoisting traps (var vs let), “this” vs arrow, plus a deep dive into the Node.js event loop (call stack → microtasks → timers). Read more →

A cool JavaScript trick If you run this in your browser console: console.log(typeof NaN); What do you think it will print? A) "number" B) "undefined" C) "NaN" D) "object" Take a guess and drop it in the comments! I'll post the answer with a short explanation tomorrow! #Javascripttips #GuessTheoutput #Jschallenge #Codesmarter #Farcaster #Onchiancontent #Web3Builders #Frontend #CodeNewbie #Coding #WebDev

JavaScript be like typeof someInput.value ===

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JavaScript: Operators ⚙️ ✅ Arithmetic: +, -, *, /, %, **, ++, -- ✅ Comparison: ==, ===, !=, >, <, >=, <= ✅ Logical: &&, ||, ! ✅ Assignment: =, +=, -=, *=, /=, %= ✅ Bitwise: &, |, ^, ~, <<, >>, >>> ✅ Ternary: ? : → Shorthand for if...else ✅ Type: typeof, instanceof 🔥 Mastering these operators makes coding efficient!

📌 JavaScript Data Types Explained JavaScript has two main categories of data types: ✅ Primitive Types (immutable): 1. String – Represents text ("Hello") 2. Number – Represents both integers and floating-point numbers (42, 3.14) 3. Boolean – Represents true or false values 4. Undefined – A variable without a value (let x;) 5. Null – Represents an intentional absence of value 6. Symbol – Unique and immutable identifiers (ES6) 7. BigInt – For large integers beyond Number limit (ES2020) ✅ Non-Primitive (Reference) Types: 1. Object – Key-value pairs ({name: "Anees", age: 25}) 2. Array – Ordered list of values ([1, 2, 3]) 3. Function – A reusable block of code 🛠️ Tip: Use typeof to check the data type in JavaScript. Example: typeof 42 ➡️ number #JavaScript #WebDevelopment #Coding

typeof meaning === 'undefined' ? createMeaning() : findMeaning(); // The beauty of undefined is its potential to become anything

typeof meaning === 'undefined' ? void(0) : meaning; // Sometimes the absence of definition creates the deepest meaning