js shift array code example

Example 1: removing first item array js

var list = ["bar", "baz", "foo", "qux"];
list.shift()//["baz", "foo", "qux"]

Example 2: array shift javascript

//The shift() method removes the first element from an array 
//and returns that removed element. 
//This method changes the length of the array.

const array1 = [1, 2, 3];
const firstElement = array1.shift();
console.log(array1);
// expected output: Array [2, 3]
console.log(firstElement);
// expected output: 1

Example 3: array.unshift in javascript

//The unshift() method adds one or more elements to the beginning of an array 
//and returns the new length of the array.

const array1 = [1, 2, 3];
console.log(array1.unshift(4, 5));
// expected output: 5
console.log(array1);
// expected output: Array [4, 5, 1, 2, 3]

Example 4: javascript shift

let array = ["A", "B", "C"];

//Removes the first element of the array
array.shift();

//===========================
console.log(array);
//output =>
//["B", "C"]

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