# Array in Javascript

# What is an array in Javascript?

### In JavaScript, arrays can be a collection of elements of any type. This means that you can create an array with elements of type **String, Boolean, Number, Objects**, and even other Arrays.

### A pair of `square brackets []` represents an array in JavaScript. All the elements in the array are `comma(,)` separated.

### Here is an example of an array with four elements: type Number, Boolean, String, and Object.

```javascript
const mixedTypedArray = [50, true, "Javascript", {}];
```

### **JavaScript Array Methods:-**

### `push()` – Insert an element at the end of the array.

### Example:-

```js
const names = ["Henry","John","Mike"];
names.push("Shaun"); 
```

### `unshift()` – Insert an element at the beginning of the array.

### Example:-

```js
const names = ["Henry","John","Mike"];
names.unshift("Bella","David"); 
```

### `pop()` – Remove an element from the end of the array.

### Example:-

```js
const names = ["Henry","John","Mike","David"];
names.pop(); 
```

### `shift()` – Remove an element from the beginning of the array.

### Example:-

```js
const names = ["Henry","John","Mike","David"];
names.shift(); 
```

### `slice()` – Create a shallow copy of an array.

### Example:-

```js
const names = ["Henry","John","Mike","David"];
const new =  names.slice(2);
```

### `length` – Determine the size of an array.

### Example:-

```js
const names = ["Henry","John","Mike","David"];
let length = names.length;
```

### `Array.isArray()` – Determine if a value is an array.

### Example:-

```js
const names = ["Henry","John","Mike","David"];
let result = Array.isArray(names);
```