On 19 Oct 2013, at 12:54, Domenic Denicola <[email protected]> wrote:
> My proposed cowpaths:
>
> ```js
> Object.mixin(String.prototype, {
> realCharacterAt(i) {
> let index = 0;
> for (var c of this) {
> if (index++ === i) {
> return c;
> }
> }
> }
> get realLength() {
> let counter = 0;
> for (var c of this) {
> ++counter;
> }
> return counter;
> }
> });
> ```
Good stuff!
To account for [lookalike symbols due to combining marks] [1], just add a call
to `String.prototype.normalize`:
Object.mixin(String.prototype, {
get realLength() {
let counter = 0;
for (var c of this.normalize('NFC')) {
++counter;
}
return counter;
}
});
assert('ma\xF1ana'.realLength == 'man\u0303ana'.realLength);
[1]: http://mathiasbynens.be/notes/javascript-unicode#accounting-for-lookalikes
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