this post was submitted on 14 May 2024
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"1" + 2 === "12"
is not unique to JS (sans the requirement for the third equals sign), it's a common feature of multiple strongly typed languages. imho it's fine.EDIT: I did some testing:
What it works in:
What produces a number, instead of a string:
What it doesn't work in:
And MATLAB appears to produce 51, wtf idk
The numeric value of the '1' character (the ASCII code / Unicode code point representing the digit) is 49. Add 2 to it and you get 51.
C (and several related languages) will do the same if you evaluate
'1' + 2
.Oh that makes sense. I didn't consider it might be treated as a char