Collect.js median() Method
The median() method is used to return the median of the collection elements or median of the given key from the collection.
Syntax:
collect(array).median(key)
Parameters: The collect() method takes one argument that is converted into the collection and then median() method is applied to it. The median() method holds the key as a parameter.
Return Value: This method returns the median of the collection elements.
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 median() method in collect.js:
Example 1: Filename: index.js
Javascript
const collect = require( 'collect.js' );
let arr = [10, 15, -20, -25, 40, 50, -70];
const collection = collect(arr);
const median_val = collection.median();
console.log(median_val);
|
Run the index.js file using the following command:
node index.js
Output:
-25
Example 2: Filename: index.js
Javascript
const collect = require( 'collect.js' );
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
}
];
const collection = collect(arr);
const median_val = collection.median( 'score' );
console.log(median_val);
|
Run the index.js file using the following command:
node index.js
Output:
96
Last Updated :
26 Nov, 2020
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