Hi, I wonder why the combination of for and if is allowed in comprehension like nbe = sum(count(iseven,rv) for rv ∈ rvv if isodd(length(rv));init=0) but has to be written in two separate control flows statement in loops: #separate for and if in the loop form nbe = 0 for rv ∈ rvv …

I think the main reason is that it introduces a parsing ambiguity that depends on whitespace. Your first example needs two end. Your second needs one. The sum doesn’t have this ambiguity because generators to not use end. You can achieve you intend with the somewhat horrific: julia> for a in (a f…

Why `for/if` syntax is not allowed in loops

Internals & Design

rafael.guerra September 15, 2024, 4:59pm 6

Linking identical thread for further insights.

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Why `for/if` syntax is not allowed in loops

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