remove a value from a list using javascript code example

Example 1: delete from array based on value javascript

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

Example 2: remove a value to an array of javascript

var data = [1, 2, 3];

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

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