Common JavaScript Errors and How to Fix Them

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In today's video, I'll be going over some of the most common JavaScript errors I've encountered over the past few years and which I've seen in the comment sections of my JavaScript video tutorials.

How to Fix "null has been blocked by CORS policy":

Chapters:
0:00 Intro
0:08 Uncaught TypeError
3:40 Double vs. Triple Equals Comparison
9:06 Fetch & AJAX: Blocked by CORS Policy
13:20 Dollar Signs & Curly Braces Appearing in Strings

If this video helped you out and you'd like to see more, make sure to leave a like and subscribe to dcode!

#dcode #javascript
  1. dcode
  2. null has been blocked by cors policy
  3. blocked by cors policy
  4. ajax blocked by cors
  5. fetch blocked by cors
  6. common javascript mistakes
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Комментарии
Автор

This "defer" fixed all the problems I've been facing. Thanks a lot.

danyvigneteixeirademoraes
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I love your tutorial you really do a great job in making web dev easy for us thank you 😊😊😊

celestineamadi
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Hi, I got into trouble.
I faced with this error when open inspect elements: " Uncaught SyntaxError: redeclaration of let I "
I designed web with WordPress.
Please help me .
Thanks in advance🌸

ghazaalkhawari
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How to fix javascript error in production??
Can you make a video on that

hk_build
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The template string issue is in my experience, the confusion that PHP Programmers suffer when they make the usual "seemless" switch from coding PHP to Javascript.

NedumEze