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A comment on Click. Parent comment

Re:Click by franky47 on Friday March 19, 2021 @06:46PM (#26518939)
I did not know this variant, thanks. Having to fill the array with anything (even `undefined`) to iterate on it seemed such a weird concept (but then again, JS is weird).
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Re:Click by a1371 on Friday March 19, 2021 @07:05PM (#26519070)
The spread operator does not have the same quirk. I use it but it's still a bit weird tough

[...new Array(1000)].map(something)

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Re:Click by ficklepickle on Saturday March 20, 2021 @01:57AM (#26521094)
You can drop the new

[...Array(1000)]

I think that is the least bits. Would love to be proven wrong :D

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Re:Click by franky47 on Saturday March 20, 2021 @02:06AM (#26521138)
It may be shorter, but I like the spread syntax best used sparingly, it's harder to grasp why it was necessary there at a glance.

That's what I like in the elegance of Array.from({ length: 1000 }): it's a hack, but it reads naturally.

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Re:Click by antonvs on Sunday March 21, 2021 @07:38PM (#26535162)
"Harder to grasp" only lasts until you're mildly familiar with the idiom.
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Re:Click by trehalose on Saturday March 20, 2021 @07:45PM (#26526943)
[...Array(1e3)]
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Re:Click by bawolff on Friday March 19, 2021 @07:01PM (#26519037)
new Array(1000); ?
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Re:Click by franky47 on Friday March 19, 2021 @07:05PM (#26519069)
Try iterating on it, it won't work. This creates 1000 "empty slots".
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Re:Click by jholman on Friday March 19, 2021 @07:26PM (#26519192)
In addition to franky47's more important point, I'll add that `new Array()` and `Array()` are equivalent.
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Re:Click by The_rationalist on Friday March 19, 2021 @11:10PM (#26520514)
In java it would be default initialized but it isn't in js
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