Using math functionality
gareins opened this issue · 3 comments
How would I use math functions (or other functionality in JS and Py standard libraries) which would work in both Python source code and compiled Javascript code?
This is a self reply, if there are better ways, I am happy to hear about them!
Anyway, lets make an example use of ceil
math function:
def does_ceil_work():
print(3 == ceil(2.5))
To handle javascript part, lets add raw js code at the top of the script:
from pscript import RawJS
ceil = RawJS("Math.ceil")
Now, to get ceil
working for python interpreter, override it at the start of if __name__ == "__main__"
:
if __name__ == "__main__":
from math import ceil
does_ceil_work()
This is useful for me as I do development and tests in Python and then only export "pure functions" to JS. Also, normally, beware of subtle differences!
I think something like this should work too:
import math as Math
def does_ceil_work():
print(3 == Math.ceil(2.5))
Nice :)
Just to be clear, this needs to be in the if __name__ == "__main__"
otherwise you get an error PScript does not support imports.
.
My current code is without any imports on top and just doing this:
if __name__ == "__main__":
import math as Math
Math.PI = Math.pi