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array add or remove using dots

Shubham Kunwar answered on June 26, 2023 Popularity 1/10 Helpfulness 1/10

answer array add or remove using dots

array add or remove using dots

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// 1.PUSH: Adds one or more elements to the end of the array.
const array = [1, 2, 3];
array.push(4, 5);   // array: [1, 2, 3, 4, 5]


// 2.UNSHIFT: Adds one or more elements to the beginning of the array.
const array = [2, 3, 4];
array.unshift(1);   // array: [1, 2, 3, 4]


// 3. Spread operator (...): Adds elements from another array to the existing array.
const array1 = [1, 2];
const array2 = [3, 4];
const newArray = [...array1, ...array2];
// newArray: [1, 2, 3, 4]


// 4.POP:Removes the last element from the array and returns it.
const array = [1, 2, 3, 4, 5];
const removedElement = array.pop(); // array: [1, 2, 3, 4]  //[removedElement: 5]


// 5.SHIFT: Removes the first element from the array and returns it.
const array = [1, 2, 3, 4];
const removedElement = array.shift(); // output: [2, 3, 4]  //[removedElement: 1]


// 6.SPLICE: Removes elements from the array at a specified index,
const array = [1, 2, 3, 4, 5,6,7];
array.splice(1, 3); // Removes three elements starting from index 1
// array: [1, 5, 6, 7]


// 7.FILTER: Creates a new array with elements that satisfy a specific condition.
const array = [1, 2, 3, 4, 5];
const newArray = array.filter(element => element !== 3);
// newArray: [1, 2, 4, 5]

Popularity 1/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: add javascript using

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Contributed on Jun 26 2023

Shubham Kunwar

0 Answers Avg Quality 2/10

array add or remove using dots

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