Abin primitive data types in JavaScript nawa?

Question

Accepted Answer

JavaScript yana da **7 primitive types**, kuma komai (arrays, functions, objects) shine **object**.

Primitives: `string`, `number`, `boolean`, `null`, `undefined`, `bigint`, `symbol`.

```js
typeof "hi";       // "string"
typeof 42;         // "number"  (both ints and floats)
typeof true;       // "boolean"
typeof undefined;  // "undefined"
typeof 10n;        // "bigint"
typeof Symbol();   // "symbol"
typeof null;       // "object"  ← famous historical bug!
typeof {};         // "object"
typeof [];         // "object"  (arrays are objects)
typeof function(){};// "function"
```

## Abubuwa biyu da suke da mahimmanci

**1. Primitives ba za su iya canzawa ba kuma aka kwafi su ta hanyar ƙima; objects ana su kwafi su ta hanyar reference.**

```js
let a = 5; let b = a; b++;          // a is still 5 (independent copies)
let x = {n:1}; let y = x; y.n = 2;  // x.n is now 2 (same object!)
```

**2. `typeof null === "object"`** babbar kurakuran harshe ce da kuna bukata tumanin - don bincika null, kwatanta kai tsaye (`x === null`).

## Dalilin da yasa ya zama muhimman

Sanin ƙima-vs-reference yana bayyana dalilin da yasa sauya abin da aka raba yana shafar "duka" masu canji, dalilin da yasa `{} === {}` shine `false`, kuma dalilin da yasa kuke kwatara objects (spread) kafin kake canja su a state-driven UIs kamar React.