Underscore.js _.exists() Method

Underscore.js _.accessor() Method

Last Updated : 11 Apr, 2023

The _.accessor() method returns a function that will attempt to look up a given field in the given object.

Syntax:

funct = _.accessor( field_name );

Parameters:

field_name: This method takes the field to be searched in the given object.

Return Value: This method returns a function that will attempt to look up a given field in the given object.

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

underscore.js contrib library can be installed using npm install underscore-contrib –save.

Example 1: In this example, we will see the use of the _.accessor() Method

javascript

// Defining underscore contrib variable
const _ = require('underscore-contrib');

let ob = { gfg: "GeeksforGeeks" }
let gfgg = _.accessor('gfg');

console.log(gfgg(ob));

Output:

GeeksforGeeks

Example 2: If this function does not find any field then it will return undefined.

javascript

// Defining underscore contrib variable
const _ = require('underscore-contrib');

let ob = { gfg: "GeeksforGeeks" }
let gfgg = _.accessor('geeks');

console.log(gfgg(ob));

Output:

undefined

Underscore.js _.exists() Method

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