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Wednesday, 23 May 2018

Sort an Array of Objects in JavaScript

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Introduction
In this article we will learn about how to short the Array  of Objects using javascript. Sort an object collection in javascript.

Learn NodeJs with Basic Example . Start with NodeJs 

The sort() method sorts an array alphabetically. By default, the sort() function sorts values as strings.

var Student = [
   { Name: 'Nicks', Address: 'Delhi', RN: 2 },
   { Name: 'Bob', Address: 'US', RN: 4 },
   { Name: 'JP', Address: 'UK', RN: 1 }
    ];

    function compare(a, b) {
        const RN_A = a.RN;
        const RN_B = b.RN;

        let comparison = 0;
        if (RN_A > RN_B) {
            comparison = 1;
        } else if (RN_A < RN_B) {
            comparison = -1;
        }
        return comparison;

    }
    console.log(Student.sort(compare));
When the sort() function compares two values, it sends the values to the compare function, and sorts the values according to the returned (negative, zero, positive) value.

You may also interested Difference between array and ArrayList with example.


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