Bit Operations - bitSet/bitClear

[espruino-discuss]

Posted at 2019-07-01 by Crash

Hi guys,

on Arduino I used the functions "bitSet()" and "bitClear().
Link: https://www.arduino.cc/reference/en/language/functions/bits-and-bytes/bitset/

I have the following data: 0b00000000
I would like to switch a specific bit to 1 or 0. How can I do that with javascript/espruino?

Thank you.

[espruino-discuss]

Posted at 2019-07-01 by Robin

Mon 2019.07.01

Hi @user101402, I just Googled 'how to set a bit javascript' and result set is with examples:

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Bitwise_Operators

https://www.w3schools.com/js/js_bitwise.asp

If needed, creating a wrapper function should be a trivial exercise.

If Javascript is a new language for you, the above two links are excellent reference sites to hangout and peruse.


The syntax is the same as in Arduino using either C/C++

See "Bitwise Operators" under the "Structure" heading at:

https://www.arduino.cc/reference/en/#functions

https://www.cprogramming.com/tutorial/bitwise_operators.html

[espruino-discuss]

Posted at 2019-07-02 by @MaBecker

here you find some samples

https://stackoverflow.com/questions/1436438/how-do-you-set-clear-and-toggle-a-single-bit-in-javascript

[espruino-discuss]

Posted at 2019-07-02 by Crash

Thank you for your help :) Works great.