CS_learn/tech-interview-handbook
1
0
Fork 0
mirror of https://github.com/yangshun/tech-interview-handbook.git synced 2026-02-03 10:34:43 +08:00
Code Issues Packages Projects Releases Wiki Activity

Improve answer for enumerating through JS object properties (#91)

Browse Source 
I think it is necessary to mention the way to iterating over all non-enumerable properties
This commit is contained in:
Nicholas Lee
2017-11-24 12:37:14 +09:00
committed by Yangshun Tay
parent 9d74d2b836
commit 7247dbcaf7
1 changed files with 1 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
front-end/interview-questions.md
View File

@@ -1240,6 +1240,7 @@ For objects:
- `for` loops - `for (var property in obj) { console.log(property); }`. However, this will also iterate through its inherited properties, and you will add an `obj.hasOwnProperty(property)` check before using it.
- `Object.keys()` - `Object.keys(obj).forEach(function (property) { ... })`. `Object.keys()` is a static method that will lists all enumerable properties of the object that you pass it.
- `Object.getOwnPropertyNames()` - `Object.getOwnPropertyNames(obj).forEach(function (property) { ... })`. `Object.getOwnPropertyNames()` is a static method that will lists all enumerable and non-enumerable properties of the object that you pass it.
For arrays: