Answers for "removing an element in an array"

282

how do you remove a remove element from array in javascript

var colors = ["red","blue","car","green"];
var carIndex = colors.indexOf("car");//get  "car" index
//remove car from the colors array
colors.splice(carIndex, 1); // colors = ["red","blue","green"]
Posted by: Guest on July-19-2019
8

remove array elements javascript

let forDeletion = [2, 3, 5]

let arr = [1, 2, 3, 4, 5, 3]

arr = arr.filter(item => !forDeletion.includes(item))
// !!! Read below about array.includes(...) support !!!

console.log(arr)
// [ 1, 4 ]
Posted by: Guest on June-07-2020
0

delete array element

const arr = [7, 8, 5, 9];
delete arr[3];
console.log(arr); //[7, 8, 5, empty] 
delete operator removes only an element; Not the space allocated to it.
Posted by: Guest on July-28-2021

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