Lodash | _.head() Method

The _.head() method is used to get the first element of an array.

Syntax

_.head( array )

Parameters: This method accepts single parameter as mentioned above and described below:

• array: This parameter holds the query array.

Return Value: It returns the first element of the array.

Example 1:

const _ = require('lodash');

let ar = [1, 2, 3, 4, 5]

let first = _.head(ar);

console.log(first)

Output:

1

Example 2:

const _ = require('lodash');

let ar = [{a: 1, b: 2}, {c: 3, d:4}, {e: 5, f: 6}]

let first = _.head(ar);

console.log(first)

Output:

{ a: 1, b: 2 }

Example 3:

const _ = require('lodash');

let ar = []

let first = _.head(ar);

console.log(first)

Output:

undefined

Note: The _.head() method on an empty array returns undefined.

Note: This will not work in normal JavaScript because it requires the library lodash to be installed.

Reference: https://lodash.com/docs/4.17.15#head