Lodash _.isNil() Method

Lodash _.isNil() method checks if a value is either null or undefined. It returns true for both null and undefined values, and false for all other data types, making it useful for validating missing data.

Syntax

_.isNil(value)

Parameters

• value(*) parameter holds the value to check.

Return Value

• This method returns true if the value is nullish, else false.

Example 1: In this example, null is null itself so it is returning true.

// Requiring the lodash library  
const _ = require("lodash");  
   
// Use of _.isNil()  
// method 
let gfg = _.isNil(null);
       
// Printing the output  
console.log(gfg);

 Output:

true

Example 2: In this example, void is null so it is returning the true value.

// Requiring the lodash library  
const _ = require("lodash");  
   
// Use of _.isNil()  
// method 
let gfg = _.isNil(void 0);
       
// Printing the output  
console.log(gfg);

 Output:

true

Example 3: In this example, NaN is not null so it is giving us a false value.

// Requiring the lodash library  
const _ = require("lodash");  
   
// Use of _.isNil()  
// method 
let gfg = _.isNil(NaN);
       
// Printing the output  
console.log(gfg);

Output:

false