Compare Array in JavaScript | Find difference, Equals or not Exampels

How to compare elements in an array of JavaScript?

To compare arrays, loop through them and compare every value. In the example compare two arrays… and result true if they are identical, and false if not.

Example of Compare Array in JavaScript (array.equals)

Source: stackoverflow

Output:

Compare Array in JavaScript array.equals

Q: How to get the difference between two arrays in JavaScript?

Answer:- Comparing a normal array is easy. You need to use the a for .. in loop.

Here is a example code to return the difference between two arrays in JavaScript:-

Output: Array [ “c”, “d” ]

Note: If you don’t care about backward compatibility, is using filter.

Q: How to Compare two Arrays are Equal using JavaScript?

Answer: You could use Array.prototype.every().

Do comment if you know better example or any doubts or suggestions on this topic.

Note: All JS Examples codes are tested on the Firefox browser and the Chrome browser.
OS: Windows 10
Code: HTML 5 Version


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