deleting element in array object code example

Example 1: 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 } ]

Example 2: how to delete object in array

let array = [1,2,3];
let item = array.indexOf(2)
let deleteCount = 1;
array.splice(item, deleteCount)