The _.isFloat() method checks whether the given value is a Float value or not, and returns the corresponding boolean value.
Syntax:
_.isFloat( value );
Parameters:
- value: Given value to be checked for Float value.
Return Value: This method returns a Boolean value(Returns true if the given value is even, else false).
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 .
Example 1:
Javascript
// Defining underscore contrib variable var _ = require('underscore-contrib'); // Checking console.log("The Value is Float : " + _.isFloat(4.91)); |
Output:
The Value is Float : true
Example 2:
Javascript
// Defining underscore contrib variable var _ = require('underscore-contrib'); // Checking console.log("The Value is Float : " + _.isFloat(21)); |
Output:
The Value is Float : false
Example 3: For this method values 2.0 and 2 both will be considered as an integer, so this method will return false.
Javascript
// Defining underscore contrib variable var _ = require('underscore-contrib'); // Checking console.log("The Value is Float : " + _.isFloat(2.0)); |
Output:
The Value is Float : false
Example 4: A string containing float value will return true.
Javascript
// Defining underscore contrib variable var _ = require('underscore-contrib'); // Checking console.log("The Value is Float : " + _.isFloat("2.188")); |
Output:
The Value is Float : true
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