Collect.js max() Method

The max() method is used to return the maximum value of a given key. It takes a collection and returns the maximum values present in that collection for a given key.

Syntax:

collect(array).max(key)

Parameters: The collect() method takes one argument that is converted into the collection and then the max() method is applied to it. The max() method can hold the key of the object.

Return Value: This method returns the maximum value of a given key. 

Module Installation: Install collect.js module using the following command from the root directory of your project:

npm install collect.js

The below example illustrates the max() method in collect.js:

Example 1: Filename: index.js

Javascript

// Requiring the module
const collect = require('collect.js');

// Array with sample values
let arr = [10, 15, -20, -25, 40, 50, -70];

// Creating collection object
const collection = collect(arr);

// Function call
const max_val = collection.max();

// Printing the max value
console.log(max_val);

Run the index.js file using the following command:

node index.js

Output:

50

Example 2: Filename: index.js

Javascript

// Requiring the module
const collect = require('collect.js');

// Array with sample values
let arr = [
  {
      name: 'Rahul',
      dob: '25-10-96',
      section: 'A',
      score: 98,
  },
  {
      name: 'Aditya',
      dob: '25-10-96',
      section: 'B',
      score: 96,
  },
  {
      name: 'Abhishek',
      dob: '16-08-94',
      section: 'A',
      score: 80
  }
];

// Creating collection object
const collection = collect(arr);

// Function call
const max_val = collection.max('score');

// Printing the max value
console.log(max_val);

Run the index.js file using the following command:

node index.js

Output:

98