javascript remove from array by index
//Remove specific value by index
array.splice(index, 1);javascript remove from array by index
//Remove specific value by index
array.splice(index, 1);javascript remove 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"]array remove index from array
const array = [2, 5, 9];
//Get index of the number 5
const index = array.indexOf(5);
//Only splice if the index exists
if (index > -1) {
//Splice the array
array.splice(index, 1);
}
//array = [2, 9]
console.log(array);how to remove element from array in javascript
/* there are 3 ways to do so
1) pop(), which removes the last element
2) shift(), which removes the first element
3) splice(), which removes any element with a specified index.
of these only splice() takes parameters. the first parameter it takes is the
index of the element to be removed, an integer. the second is the number of
elements to be removed, again integer. the third and fourth etc. are optional,
which is to be used if you want to replace them. Example: */
let numbers = [1, 2, 3, 4, 5];
numbers.pop(); // removes 5
numbers.shift(); // removes 1
let threeIndex = numbers.indexOf(3); // used for long arrays
numbers.splice(threeIndex, 1); // without replacement
numbers.splice(threeIndex, 1, 7) // 3 will now be replaced by 7remove item at index in array javascript
// remove element at certain index without changing original
let arr = [0,1,2,3,4,5]
let newArr = [...arr]
newArr.splice(1,1)//remove 1 element from index 1
console.log(arr) // [0,1,2,3,4,5]
console.log(newArr)// [0,2,3,4,5]javascript remove index from array
array.splice(index, 1); // Removes one element at indexCopyright © 2021 Codeinu
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