# Array and Array methods

An **array** is collection of items.An array can hold many values under a single name, and you can access the values by referring to an index number.

for example lets consider an array 'names'

`let names = ['billu','maaru','mayank','mayur','tillu',];`

### **Array Methods:**

```javascript
console.log(names);
```

//length

`console.log(names.length);`

//specific element

`console.log(names[2]);`

//last element

`console.log(names[names.length-1]);`

replacing an element

`names[2] = 'shanaya';`

`console.log(names);`

//inserting new value

`names.push('ram');`

`console.log(names);`

//accesing multiple values through slice

`console.log(names.slice(1,4));`

//splice

`let fruit = ['apple','banana','orange','watermelon']; fruit.splice(2,2,'grapes','chiku');`

`console.log(fruit);`

//concatenation

`let arr1 = [1,2,3,4,5,7,8] let arr2 = [5,6,7,8] let arr3 = [9,10] console.log(arr1.concat(arr2,arr3));`

//fill

`console.log(arr1.fill('mayur',2,5));`

//includes

`console.log(arr1.includes(5,7));`