>Another idea is to to define a variant of the RegExp.prototype.exec() method, >that does the Right Thing (doesn't read/write stuff on the RegExp instance, >nor on the RegExp global, nor I don't know where): > >RegExp.prototype.run (str, params): > > Do what is currently specified for `RegExp.prototype.exec`, except that: > > * global, sticky and lastIndex properties are read and written on > `params` instead of `this` > * implementations are not allowed to extend that method in order to > mess with `RegExp`, etc. >All other (legacy) methods are rewritten in terms of RE.p.run (in the current >ES6 draft, they are mostly written in terms of RE.p.exec).
RegExp.prototype.exec returns array with extra properties (input, index), may be it is better to return something other for `run`, frozen value object with `0`, `1`, ... keys for example. What do you think? Actually, `index` and "input" are not very interesting, as input is a string passed to `exec` and index = string.indexOf(match[0], lastIndex), right? _______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
