Great feature
this post was submitted on 05 May 2025
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Another classic javascript wat
Classic people who don't know how to code wat. Passing a number in place of a string argument because they don't know what they're doing.
It's not a string argument though, it's JS. You can argue it's expected to be a string but like the rest of JS all you can know from the signature alone is that it takes an object. Hopefully your little ducky quacks the right way!
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(5 replies)
Could be a variable from somewhere else in the code. It should throw type error of some sort if it's not going to handle a float correctly
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(1 replies)
Javascript could throw an error to alert you that the input is supposed to be a string, like most languages would do.
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(11 replies)
What do you mean, you don't use string parsing method to round to integers? /s
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(1 replies)
If anyone's wondering why:
>> 0.000005
0.000005
>> 0.0000005
5e-7
Yup. parseInt is for strings.
Math.floor, Math.ceil, Math.round or Math.trunc are for numeric type "conversions" (cause its still a float)
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(1 replies)
It's because parseInt is expecting a string, so the decimal gets converted to a string, and 0.0000005.toString() returns 5e-7.
And to further expand on that, if you do pass in a ~~sting~~ string, it handles it correctly.
> parseInt('0.0000005')
0