# Server-Side Kotlin-Array Methods

### Component1():-

This method returns 1st element from the given array.

```plaintext
>>>val languages = arrayOf<String>("java","python", "javascript","php")
>>>println(languages.componenet1())
java 
```

### Component 2/3/4:-

This method returns 2,3 and 4th elements from the given array.

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1674305761599/b87a9de4-e039-4b64-9ee9-d7d0848aac13.png align="center")

### first():-

Returns the first element from the given array.

```plaintext
>>>println(languages.first())
java
```

### lastIndexOf():-

Returns the last index number of elements from the given array.

```plaintext
>>>println(languages.lastIndexOf("php"))
3
```

### none():-

Returns true if the array has no elements.

```plaintext
>>>println(languages.none())
false
//empty array
>>>val lang = arrayOf<String>()
>>>println(languages.none())
true
```

### random():-

Returns a random element from the given array.

```plaintext
>>>println(languages.random())
php
```

### take():-

Returns a list containing the first n elements.

```plaintext
>>>println(languages.take(2))
[java,python]
```

### contains():-

Returns true if the element is found in the array.

```plaintext
>>>println(languages.contains("javascript"))
true
```

### count():-

Returns the total number of elements from the given array.

```plaintext
>>>println(languages.count())
4
```

### drop():-

Returns a list containing all elements except the first n elements.

```plaintext
>>>println(languages.drop(2))
[javascript, php]
```

code tested on kotlin REPL Kotlin version 1.7.21 (JRE 11.0.17+8-post-Ubuntu-1ubuntu220.04)