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Node.js | push() function
  • Last Updated : 30 Aug, 2019
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push() is an array function from Node.js that is used to add element to the end of an array.

Syntax:

array_name.push(element)

Parameter: This function takes parameter that has to be added to the array. It can take multiple elements also.

Return type: The function returns the array after adding the element.

The program below demonstrates the working of the function:



Program 1:




function PUSH()
{
  arr.push(2);
  console.log(arr);
}
var arr = [12, 3, 4, 6, 7, 11];
PUSH();

Output:

[ 12,  3, 4, 6, 7, 11, 2]

Program 2:




function addLang()
{
arr.push('DS','Algo','JavaScript');
console.log(arr);
}
var arr = ['NodeJs'];
addLang();    

Output:

[ 'NodeJs', 'DS', 'Algo', 'JavaScript' ]

Program 3:




var Lang = ['java', 'c', 'python'];
  
console.log(Lang);
// expected output: Array [ 'java', 'c', 'python' ]
  
Lang.push('node');
  
console.log(Lang);
// expected output: Array [ 'java', 'c', 'python', 'node' ]

Output:

[ 'java', 'c', 'python' ]
[ 'java', 'c', 'python', 'node' ]

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