remove all specific elements from array javascript code example

Example 1: how to take an element out of an array in javascript

var data = [1, 2, 3];

// remove a specific value
// splice(starting index, how many values to remove);
data = data.splice(1, 1);
// data = [1, 3];

// remove last element
data = data.pop();
// data = [1, 2];

Example 2: delete from array based on value javascript

var index = array.indexOf(item);
if (index !== -1) array.splice(index, 1);