andre/30-seconds-of-code
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Bake dates into articles

Browse Source
This commit is contained in:
Isabelle Viktoria Maciohsek
2021-06-13 19:52:48 +03:00
parent 65528cce0d
commit 9482b077ec
123 changed files with 246 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
blog_posts/javascript-shallow-deep-clone.md
View File

@ -5,6 +5,8 @@ tags: javascript,object
authors: chalarangelo
cover: blog_images/pagodas.jpg
excerpt: Learn how JavaScript handles mutable data, such as objects and arrays, and understand how shallow cloning and deep cloning work.
firstSeen: 2020-04-14T16:19:56+03:00
lastUpdated: 2021-06-12T19:30:41+03:00
---
JavaScript's primitive data types, such as numbers, strings, null, undefined and booleans are immutable, meaning their value cannot change once created. However, objects and arrays are mutable, allowing their value to be altered after creation. What this means in practice is that primitives are passed by value, whereas objects and arrays are passed by reference. Consider the following example: