JavaScript | Array length Property

The array length property in JavaScript is used to set or return the number of elements in an array.

Syntax:

It is used to set the array length.
```
array.length = number
```
It returns the length of array.
```
array.length
```

Return Value: It returns a numerical value, denoting the number of elements in the array object.

Example: This example returns the length of array.

<!DOCTYPE html> 
<html> 
  
<head> 
    <title> 
        JavaScript Array length Property 
    </title> 
</head> 
  
<body> 
    <h1>GeeksforGeeks</h1> 
      
    <h2> 
        JavaScript Array length Property 
    </h2> 
      
    <button onclick="array()"> 
        Click Here! 
    </button> 
      
    <p id="gfg"></p> 
      
    <!-- Script to return  the length of array -->
    <script> 
        function array() { 
        var colors = ["green", "blue", "red",  
                      "yellow", "black", "white" ]; 
                        
            document.getElementById("gfg").innerHTML 
                    = colors.length; 
        } 
        </script> 
</body> 
  
</html>                     

Output:
Before clicking the button:

After clicking the button:

Supported Browsers: The browser supported by JavaScript array length property are listed below:

Google Chrome
Firefox
Internet Explorer
Opera
Safari

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