Instead of parseInt
parseInt
['1', '2', '10'].map(x=>~~+x)
Works - and shorter
dev-to-uploads.s3.amazonaws.com/i/...
:)
The hell did I just read?
> ['1', '4294967295', '10'].map(x=>~~+x) (3) [1, -1, 10]
Bitwise NOT (~):
The operands are converted to 32-bit integers and expressed by a series of bits (zeroes and ones). Numbers with more than 32 bits get their most significant bits discarded.
Unsigned right shift (>>>):
Unlike the other bitwise operators, zero-fill right shift returns an unsigned 32-bit integer.
Know the limitations of your tools.
Integers and shift operators in JavaScript
> ['1.1', '9007199254740991.6', '10.9'].map(n => parseInt(n)) (3) [1, 9007199254740991, 10]
I know all that, but for the purposes of a simple string -> integer parser, this works just fine
that works, but unreadable, therefore it's a bad practice, should be ['1', '2', '10'].map(n => Number.parseInt(n));
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Instead of
parseIntWorks - and shorter
dev-to-uploads.s3.amazonaws.com/i/...
:)
The hell did I just read?
Bitwise NOT (~):
Unsigned right shift (>>>):
Know the limitations of your tools.
Integers and shift operators in JavaScript
I know all that, but for the purposes of a simple string -> integer parser, this works just fine
that works, but unreadable, therefore it's a bad practice, should be ['1', '2', '10'].map(n => Number.parseInt(n));