Lodash _.isAssociative() Method

The Lodash _.isAssociative() Method checks whether the given value is associative or not. An associative object is that in which its elements can be accessed via a key or index. Exp, Arrays.

Syntax:

_.isAssociative(value);

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

• value: Given value to be checked for associative.

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

Note: To execute the below examples, you have to install the lodash-contrib library by using this command prompt and execute the following command.

npm install lodash-contrib

Below examples illustrate the Lodash _.isAssociative() method in JavaScript:

Example 1: Method returning true for an array.

Javascript

// Defining lodash contrib variable
var _ = require('lodash-contrib');

// Checking
console.log("The Value is Associative : "
            +_.isAssociative([1,2,3,4]));

Output:

The Value is Associative : true

Example 2: Method returning false for an integer.

Javascript

// Defining lodash contrib variable
var _ = require('lodash-contrib');

// Checking
console.log("The Value is Associative : "
             +_.isAssociative(2));

Output:

The Value is Associative : false

Example 3: For a mapping, this method returns true as its value can be accessed by keys.

Javascript

// Defining lodash contrib variable
var _ = require('lodash-contrib');

// Checking
console.log("The Value is Associative : "
             +_.isAssociative({1:2, 3:3}));

Output:

The Value is Associative : true

Example 4: Method returning false for a string variable.

Javascript

// Defining lodash contrib variable
var _ = require('lodash-contrib');

// Checking
console.log("The Value is Associative : "
             +_.isAssociative("GeeksforGeeks"));

Output:

The Value is Associative : false