take off element from array javascript by index code example

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: remove all from array that matches

var array = [1,2,'deleted',4,5,'deleted',6,7];
var newarr = array.filter(function(a){return a !== 'deleted'})

Example 3: remove one element using splice

fruits = ['Banana', 'Orange', 'Apple', 'Mango'];

removeFruitByIndex(index: number) {
  this.fruits = [
    ...this.fruits.slice(0, i),
    ...this.fruits.slice(i + 1, this.fruits.length),
  ];
}


removeFruitByValue(fruite: string) {
  const i = this.descriptionsList.indexOf(fruite);
  this.fruits = [
    ...this.fruits.slice(0, i),
    ...this.fruits.slice(i + 1, this.fruits.length),
  ];
}