The Lodash _.isPositive() method checks whether the given value is Positive or not and returns the correspondingly boolean value.
Syntax:
_.isPositive(value);
Parameters: This method accepts a single parameter as mentioned above and described below:
- value: Given value to be checked for a positive value.
Return Value: This method returns a Boolean value true if the given value is Positive, 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 the following command:
npm install lodash-contrib
Example 1:
// Defining underscore lodash variable var _ = require('lodash-contrib');   // Checking for _.isPositive() method console.log("The Value is Positive : " + _.isPositive(20)); |
Output:
The Value is Positive : true
Example 2:
// Defining underscore lodash variable var _ = require('lodash-contrib');   // Checking for _.isPositive() method console.log("The Value is Positive : " + _.isPositive(-1000));   console.log("The Value is Positive : " + _.isPositive("100")); |
Output:
The Value is Positive : false The Value is Positive : true
Example 3:
// Defining underscore lodash variable var _ = require('lodash-contrib');   // Checking for _.isPositive() method console.log("The Value is Positive : " + _.isPositive(true));   console.log("The Value is Positive : " + _.isPositive([10, 20])); |
Output:
The Value is Positive : true The Value is Positive : false
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