Avoid common Javascript Mistakes and improve performance
Doesn’t matter if you just started or you use javascript everyday. there will always be things which might surprise you.
This video will go through some of the best practices and common mistakes that every javascript/typescript programmer should know.
We will start from variable declaration to code and data structures optimisations, we will see the common usage mistakes of provided functions and things to be aware of around callbacks, arrow functions, the "this" and bind(). We will see common problems with asynchronous code and some useful stuff to keep in mind.
Chapters:
0:00 Intro
0:10 Use let and const
0:43 Declare variables near where they are used
1:27 Don't spend time for the same lookups
2:03 Choose the right data structure
3:02 .map() is not a .forEach()
3:34 Callbacks and Optional parameters
4:30 Don't lose your "this"
5:23 Asynchronous code vs Sequential
5:48 Generator Functions
6:17 Comparing things
6:44 Sorting numbers
7:29 JSON.stringify()
7:43 Math.random(), UUIDs and Secure Random
8:22 The Crypto Module
8:42 Best practices and Common Mistakes
The slides are available here: https://speakerdeck.com/matteobertozz...
Check the video about Encryption and Decryption, using the crypto module, with code examples: • Unbreakable Messages: RSA + AES Encryption...
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