Lodash _.isPositive() Method

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