On Sat, 17 Mar 2012 00:23:25 +0100, Mark Davis ☕ <[email protected]>
wrote:
Whew, a lot of work, Norbert. Looks quite good. My one question is
whether it is worth having a mechanism for iteration.
OLD CODE
for (int i = 0; i < s.length(); ++) {
var x = s.charAt(i);
// do something with x
}
Using your mechanism, one would write:
NEW CODE
for (int i = 0; i < s.length(); ++) {
var x = s.codePointAt(i);
// do something with x
if (x > 0xFFFF) {
++i;
}
}
In Java, for example, I *really* wish you could write:
DESIRED
for (int codepoint : s) {
// do something with x
}
However, maybe this kind of iteration is rare enough in ES that it
suffices
to document the pattern under NEW CODE.
That's the beauty of ECMAScript; it's extensible. :-)
String.prototype.forEachCodePoint = function(fun) {
for (var i=0; i<s.length; i++) {
var x = s.codePointAt(i)
fun(x, s)
if (x > 0xFFFF) { ++i }
}
}
"hello".forEachCodepoint(function(x) {
// do something with x
})
Thanks for all your work!
proposal for upgrading ECMAScript to a Unicode version released in this
century
This was amusing; could have said "this millennium" ;-)
------------------------------
Mark <https://plus.google.com/114199149796022210033>
*
*
*— Il meglio è l’inimico del bene —*
**
Jonas
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