What is array concat in JavaScript

In this article, I am going to explain array concat method.
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Array concat method in JavaScript

The array concat() in JavaScript concatenate or combined two or more array and returning a new array.

Syntax of concat method

array.concat(value1,value2,valu3,....................valuen);


Parameters in array concat method:

  • array

    Array object to which all other arrays are concateated.
     

  • Value

    value are array item to add to the end of array.

Return value of concat method

Concat method returns the length of the array.

Example of array concat()
 

 

<!DOCTYPE html>

<html>

<head>

<title>JavaScript array concat() example</title>

<script type="text/javascript">

    var firstArray = new Array(2);

    firstArray[0] = "Mcn";

    firstArray[1] = "soluation";

    var secondArray = new Array(2);

    secondArray[0] = "Private";

    secondArray[1] = "Limited";

    var finalArray = firstArray.concat(secondArray);

    document.write("<b>First array is</b>=>" + firstArray + "<br> ");

    document.write("<b>Second array is</b> =>" + secondArray + "<br> ");

    document.write("<b>Concatenated array is</b> =>" + finalArray + "<br> ");

</script>

</head>

<body>

</body>
</html>


Output:
 

First array is=>Mcn,soluation
Second array is =>Private,Limited
Concatenated array is =>Mcn,soluation,Private,Limited


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