Key Difference between 'Object.hasOwn' and 'in' operator in JavaScript

10 April, 2022
74 read  ·  1 Hearts

If you are a JavaScript dev, you must have come across a situation when you wanted to check if an object has a certain property or not, and for that, you might have used, the two most popular options for that - the “in” operator and the “hasOwnProperty” method in JavaScript.

But, what is the key difference between the “in” operator and the “hasOwnProperty” method in JavaScript? and as a JS Developer, it is really important to know that. Why? because not knowing this difference can result in a real bad Bug.

1) “in” operator

The ”in“ operator returns true if the specified property is in the specified object or its prototype chain.

Key Difference between “Object.hasOwn” and “in” operator in JavaScript

2) obj.hasOwnProperty

The hasOwnProperty method returns a boolean indicating whether the object has the specified property as its own property (as opposed to inheriting it).

Key Difference between “Object.hasOwn” and “in” operator in JavaScript

Programming javascript javascript frameworks programming JS developer js coding
Comments  ·  0
You need to be Logged in to Comment. Login

Recommended

Need Help? ·  About
Terms and Conditions ·  Contact ·  Privacy

© 2021 ayedot. All Rights Reserved.

;