Example 1: remove a particular element from array
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"]
Example 2: js remove from array by value
const index = array.indexOf(item);
if (index !== -1) array.splice(index, 1);
Example 3: js remove item from array by value
var arr = ['bill', 'is', 'not', 'lame'];
arr.splice(output_items.indexOf('not'), 1);
console.log(arr) //returns ['bill', 'is', 'lame']
Example 4: delete from array based on value javascript
var index = array.indexOf(item);
if (index !== -1) array.splice(index, 1);
Example 5: find and delete element from array js
const array = [2, 5, 9];
console.log(array);
const index = array.indexOf(5);
if (index > -1) {
array.splice(index, 1);
}
// array = [2, 9]
console.log(array);
Example 6: how to delete an element of an array in javascript
//you can use two functions depending of what you want to do:
let animals1 = ["dog", "cat", "mouse"]
delete animals1[1]
/*this deletes all the information inside "cat" but the element still exists
so now you'll have this:*/
console.log(animals1)//animals1 = ["dog", undefined, "mouse"]
//if you want to delete it completely, you have to use array.splice:
let animals2 = ["dog", "cat", "mouse"]
animals2.splice(1, 1)
/*the first number means the position from which you want to start to delete
and the second is how much elements will be deleted*/
console.log(animals2)//animals2 = ["dog", "mouse"]
/*Now you don't have undefined
If you did this:*/
let animals3 = ["dog", "cat", "mouse"]
animals3.splice(0, 2)//you'll have this:
console.log(animals3)//animals 3 = "mouse"
/*This happens because I put a 2 in the second parameter so it deleted
two elements from position 0
Try copying this code in your console and whatch*/