Le 31 déc. 2012 à 10:17, Axel Rauschmayer <[email protected]> a écrit :
>>> I’d be interested in other examples of implicit conversions stumping people. >> >> What stumped who, when? Any bugs/github issues/blog posts to cite? > > No, I think I agree with your assessment that implicit conversion to boolean > (the most prevalent implicit conversion) is manageable, possibly even > desirable. > > I was interested in citations regarding non-bolean implicit conversions. So > far, my impression has been that other implicit conversions either worked as > people expected (+) or were never triggered (-). > Personally, I have issues with from- and to-String conversions when working with HTML form field values and data-* attributes. More precisely, I am careful to make these conversions manually, and I regret that JS doesn't warn me if I forget to do them. Indeed the following cases are problematic: * String-to-Number : not triggered in, e.g., x + '1' when x is a Number. * Boolean-to-String, Null-to-String: false and null are not converted to a falsy string. The only would-be issue with to-Boolean conversion, is that an empty array is not falsy as in Perl or PHP, and I have to remind to be a little more lengthy (pun intended) to test empty arrays. Except that case, to-Boolean implicit conversion is not only "manageable" and "possibly even desirable" : it works without hiccup and is positively useful. —Claude _______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
