Lodash _.isBoolean() Method

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The Lodash _.isBoolean() method checks if the given value can be classified as Boolean value or not.

Syntax:

_.isBoolean( value )

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

value: This parameter holds the value that needs to be Checked for Boolean.

Return Value: This method returns a Boolean value(Returns true if the given value is a boolean, else false).

Example 1: This method returns true when the value is a boolean(true or false).

Javascript

// Defining Lodash variable 
const _ = require('lodash');  
     
var val = true; 
  
// Checking for Boolean 
console.log("The Value is Boolean : " 
    +_.isBoolean(val));

Output:

The Value is Boolean : true

Example 2:

Javascript

// Defining Lodash variable 
const _ = require('lodash');  
     
var val = false; 
  
// Checking for Boolean 
console.log("The Value is Boolean : " 
    +_.isBoolean(val));

Output:

The Value is Boolean : true

Example 3:

Javascript

// Defining Lodash variable 
const _ = require('lodash');  
     
var val = null; 
  
// Checking for Boolean 
console.log("The Value is Boolean : "
    +_.isBoolean(val));