Lodash _.isNumeric() Method

The Lodash _.isNumeric() method checks whether the given value is a Numeric value or not and returns the corresponding boolean value. It can be a string containing a numeric value, exponential notation or a Number object, etc.

Syntax:

_.isNumeric( value );

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

  • value: Given value to be checked for Numeric value.

Return Value: This method returns a Boolean value true if the given value is Numeric, else false.

Note: This will not work in normal JavaScript because it requires the lodash.js contrib library to be installed. Lodash.js contrib library can be installed using npm install lodash-contrib.



Example 1:

Javascript

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// Defining lodash contrib variable 
var _ = require('lodash-contrib'); 
  
// Checking for _.isNumeric() method
console.log("The Value is Numeric : " + _.isNumeric(10000));  
  
console.log("The Value is Negative : " + _.isNumeric(10.5)); 
  
console.log("The Value is Negative : " + _.isNumeric('G')); 
  
console.log("The Value is Negative : " + _.isNumeric('Geeks'));

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Output:

The Value is Numeric : true
The Value is Negative : true
The Value is Negative : false
The Value is Negative : false

Example 2:

Javascript

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// Defining lodash contrib variable 
var _ = require('lodash-contrib'); 
  
// Checking for _.isNumeric() method
console.log("The Value is Numeric : " + _.isNumeric([1,10]));  
  
console.log("The Value is Negative : " + _.isNumeric("500")); 
  
console.log("The Value is Negative : " + _.isNumeric({})); 
  
console.log("The Value is Negative : " + _.isNumeric(null));

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Output:

The Value is Numeric : false
The Value is Negative : true
The Value is Negative : false
The Value is Negative : false

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