and now I also gonna hope that `Array.from(foo).length // 2` wasn't by accident, instead of `bar` ...
On Thu, Apr 2, 2015 at 1:07 AM, Andrea Giammarchi < [email protected]> wrote: > ```js > foo.length; // 2 > Array.from(foo).length // 1 > > bar.length; // 2 > Array.from(bar).length // 2 > ``` > > I know already everything you wrote ... now, how to explain to JS users > out there and how to solve? > > On Thu, Apr 2, 2015 at 1:04 AM, Boris Zbarsky <[email protected]> wrote: > >> On 4/1/15 6:56 PM, Andrea Giammarchi wrote: >> >>> Why is that >>> >> >> Because those are different things. The first is a single Unicode >> character that happens to be represented by 2 UTF-16 code units. The >> second is a pair of Unicode characters that are each represented by one >> UTF-16 code unit, but also happen to form a single grapheme cluster >> (because one of them is a combining character). To complicate things >> further, there is also a single Unicode character that represents that same >> grapheme cluster.... >> >> String length shows the number of UTF-16 code units. >> >> Array.from works on Unicode characters. That explains the foo.length and >> Array.from(foo).length results. >> >> and how to solve? >>> >> >> Can you clearly explain what problem you are trying to solve? >> >> -Boris >> >> _______________________________________________ >> es-discuss mailing list >> [email protected] >> https://mail.mozilla.org/listinfo/es-discuss >> > >
_______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
