javascript remove [] code example

Example 1: javascript array remove

// - - - - - - - - - - -
// Remove Last Element (pop)
// - - - - - - - - - - -
// example (remove the last element in the array)
let yourArray = ["aaa", "bbb", "ccc", "ddd"];
yourArray.pop(); // yourArray = ["aaa", "bbb", "ccc"]

// syntax:
// <array-name>.pop();

// - - - - - - - - - - -
// Remove First Element (shift)
// - - - - - - - - - - -
// example (remove the last element in the array)
let yourArray = ["aaa", "bbb", "ccc", "ddd"];
yourArray.shift(); // yourArray = ["bbb", "ccc", "ddd"]

// syntax:
// <array-name>.shift();

Example 2: remove javascript

var elem = document.getElementById("myDiv");
elem.parentNode.removeChild(elem);

Example 3: remove from array javascript

let numbers = [1,2,3,4]

// to remove last element
let last_num = numbers.pop();
// numbers will now be [1,2,3]

// to remove first element
let first_num = numbers.shift();
//numbers will now be [2,3]

// to remove at an index
let number_index = 1
let index_num = numbers.splice(number_index,1); //removes 1 element at index 1
//numbers will now be [2]

//these methods will modify the numbers array and return the removed element