can you tell that I used perl a lot :wink: . could julia> (x == 2) && y=12 clash with anything? julia does not have the less binding “and” and “or” keywords afaik. I would love them, too. I think the user meaning for the ‘&&’ construct is amply clear, but julia of course complains (correctly)…

just to build on this. kind of similar to: [image] How to do one-liners and other short conditionals? General Usage Allow me to short-circuit the discussion and point to the relevant issues: #6823 and #16389 . Happy reading!

glad to see it’s still open. I agree with stefan about the ‘and’ and ‘or’ (perl) style solution. /iaw

It would also be possible to make the precedence of = relative to && and || depend on whether it’s on the left or the right. We do that with some other operators and syntaxes.

what scares me about context-dependent precedence is unforeseen consequences…I am not so smart as to anticipate everything that could happen in the future. the “and” and “or” keywords seem safe, should be painless to implement, and do pretty much for the user what they are expected to do. I doubt …

That discussion was already had, however, and we decided not to add and and or keywords/infix operators.

I will be happy to take anything. looking at my current project, about 1 in 10-20 of the lines in my code seem to consist of a condition deciding on an assignment, though not suitable for the trinary.

A good solution here could be to allow ? without :: condition ? x = 2.

+1 for this. I was surpised it didn’t work when i first used it, and I think it reads much better as a sentence than &&. Although I do also like writing x == 2 ? x = 1 : nothing since it reads easiest, kind of like where T <: Any vs. where T.

Syntactic sugar: (x==2) and y=12 ; or even (x == 2) && y=12

Internals & Design

djsegal May 17, 2018, 10:16pm 2

just to build on this. kind of similar to:

Topic		Replies	Views
Short circuit evaluation with an assignment statement General Usage	8	1071	May 22, 2019
Why did converting && and \|\| to `and` and `or` die? Internals & Design question , proposal	9	1630	July 24, 2017
One-line `if ... then ...` syntax Internals & Design syntax	26	6223	April 22, 2022
Use ⟹ instead of &&? New to Julia question	12	985	October 1, 2024
Apparent contradiction between Julia's short-circuiting rules and Julia's precedence rules Internals & Design	11	1679	November 12, 2018

Syntactic sugar: (x==2) and y=12 ; or even (x == 2) && y=12

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