Node.js | push() function
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' ]
