bendtherules/blog-hashnode-backup
1
0
Fork 0
mirror of https://github.com/bendtherules/blog-hashnode-backup.git synced 2026-08-18 13:42:04 +00:00
Code Issues Packages Projects Releases Wiki Activity

update post: What is this inside foo.bar()?

Browse Source
This commit is contained in:
bendtherules
2020-04-03 09:42:25 +05:30
parent a7ac1e5c47
commit a36f63d223
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
ck8dzlitm01atxjs1322jz9a2.md
+1 -1
View File
@@ -46,7 +46,7 @@ Effectively -
One example of this is rewriting `foo.bar()` using a intermediate variable - ` fn = foo.​bar; fn()`. One example of this is rewriting `foo.bar()` using a intermediate variable - ` fn = foo.​bar; fn()`.
Now, if `bar` was referencing other values from foo using `this`, those values will become undefined or resolve to a wrong variable. So, if `bar` was referencing other values from foo using `this`, those values will become undefined or resolve to a wrong variable.
🧠 This is exactly the reason why passing methods as callback changes the value of `this` (passed within it). Instead of calling a method directly, callback is passed as a function and called later by some other code. 🧠 This is exactly the reason why passing methods as callback changes the value of `this` (passed within it). Instead of calling a method directly, callback is passed as a function and called later by some other code.