-
-
Save cristinafsanz/733c4ae6f2d4a58d4944532c14cff2d4 to your computer and use it in GitHub Desktop.
Iterating Over Object Entries in JS using for...in | Performance Comparison [https://gists.cwidanage.com/2018/06/how-to-iterate-over-object-entries-in.html]
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| let obj = { | |
| key1: "value1", | |
| key2: "value2", | |
| key3: "value3" | |
| } | |
| for (const key in obj) { | |
| let value = obj[key]; | |
| //optional check for properties from prototype chain | |
| if (obj.hasOwnProperty(key)) { | |
| //no a property from prototype chain | |
| }else{ | |
| //property from protytpe chain | |
| } | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment