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Are Javascript arrays sparse?
... 130.57 MB
undefined
Then sparse again:
> yetAnotherArray = Array(2**32-1)
[ <4294967295 empty items> ]
> console.log(`The script is using approximately ${Math.round(process.memoryUsage().heapUsed / 1024 / 1024 * 100) / 100} MB`)
The script is using approximately 130.68 MB
undefined
...
Create an array with same element repeated multiple times
..., 5, 5, 5, 5, 5]
>>> //Or in ES6
>>> [...Array(10)].map((_, i) => 5)
[5, 5, 5, 5, 5, 5, 5, 5, 5, 5]
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CodingWithoutCommentsCodingWithoutComments
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edited Jun 22 '19 at 7:32
double-beep
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Optimize Font Awesome for only used classes
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How do I remove  from the beginning of a file?
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<?php
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iOS Detect 3G or WiFi
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edited Sep 3 '19 at 13:32
answered Sep 3 '19 at 13:27
El...
How to sum array of numbers in Ruby?
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321
jorney's array.inject(:+) is more efficient.
– Peter
Oct 9 '09 at 7:09
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Changing image size in Markdown
...quished
– kashiraja
Jul 24 '19 at 0:32
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