how to remove object from array at specific position in javascript code example

Example 1: js remove specific element from array

const array = [2, 5, 9];

console.log(array);

const index = array.indexOf(5);
if (index > -1) {
  array.splice(index, 1);
}

// array = [2, 9]
console.log(array);

Example 2: locate and delete an object in an array

var people = [
    {name: 'Billy', age: 22},
    {name: 'Sally', age: 19},
    {name: 'Timmy', age: 29},
    {name: 'Tammy', age: 15}
];
_.remove(people, function(e) {
    return e.age < 21
});
console.log(people);

// Output
// [ { name: 'Billy', age: 22 }, { name: 'Timmy', age: 29 } ]