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by daneel_w
2038 days ago
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In the absence of strict type checking it would be terrible, but == performs a loose comparison, and "foobar" cannot cast to any other number than 0. Perl will go about it the exact same way. Contrast this against strict comparison, "0" === 0, which will evaluate as false. |
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No, Perl is completely different and IMO it's the only mainstream dynamically typed language that has sane comparison operators.
Perl has two sets of operators, numeric (==, +, *, <, >, <=> etc.) and stringwise (eq, ., lt, gt, cmp etc.). You can think of them as explicit (but concise) casts. For example, Perl's $foo eq $bar is roughly equivalent to Python's str(foo) == str(bar).
It is true that "foobar" == 0 returns true in Perl but, as I showed above, it does that for a completely different reason.