Managing User Permissions with Bitwise Operators

There are frequently different types of users on a website who have different levels of access and different task permissions. This tutorial explains how you can use a single integer to represent any combination of access permissions, all thanks to the bitwise operators. The bitwise operators will let us manipulate and interrogate numbers at the binary level.
Code from video: gist.github.com/prof3ssorSt3v...
Bitwise operator basics video: • Managing User Permissi...

[@jeanmarcpourchel307]

Another great tip!
Bitwise operators are underrated and forgotten most of the time.
Thanks for reminding us that they exist.
...and as always thanks for teaching

[@aquib-J]

I always imagined something similar if I had to write a permission system. Very neat idea. Unix continues to inspire with its clever Ideas 😃. Thanks

[@noeascencio9444]

This is the best way to save permissions, if you slit it into categories, each category can have at least 32 permissions. I'm starting to use it cause i have 11 categories and each one has about 10 permissions. This is exactly what I needed to get me started. I'm using arrays for each category :)

[@write2sampath1]

Wow !! Never knew the power of bitwise operators. This is 🔥. Would love to see more content like this.

[@HappyLifege]

Insightful. Thank you for this lesson!

[@mykalimba]

Back when the cost of memory was exorbitant, any coder worth his/her salt (myself included) was encoding data like this.

[@SteveGriffith-Prof3ssorSt3v3]

Yep. As we reach the limits of Moores law it will become important again.

[@chesterxp508]

Another very cool tutorial!

[@smajdovamanka]

THANK YOU SO MUCH FOR THiS!

[@vwesih8231]

this.access &= ~perm can also be removed

[@pnutbtrr7717]

Steve and Joanne out here dying of thirst

[@grijjly6091]

for remove function, this.access &= ~perm does the job without checking it

[@adicide9070]

Hi Steve, was trying this out along with the vid and I figured maybe we could check for presence of a permission before removing with XOR this way:
if (this.access & permission) {
this.access ^ permission
}
Not sure but seems to make sense. Quick question to go along with this, though: How come you choose to not go with labels for the console log of available permissions? Is there any advantage to having nums there which we'd have to look up to know what they reference?

[@SteveGriffith-Prof3ssorSt3v3]

yes. but don't forget the assignment. this.access = this.access ^ permission
I use the getAll method to help people understand the step a bit easier.

[@adicide9070]

@@SteveGriffith-Prof3ssorSt3v3 right, thanks!