28285 – Remove non-spec support for callable RegExp
> Additional ramifications from this are that native JSON.stringify > will ignore RegExp instances as it does Functions. Hmmm, this certainly does sound like a ramification we should consider carefully, and could even be a reason to remove the ability to call RegExp objects. > It seems to me the value of syntactic sugar that shaves 5 characters from > /a/.exec("abc") is not worth the price of crea
What the JavaScript RegExp API Got Wrong, & How to Fix It
Over the last few years, I've occasionally commented on JavaScript's RegExp API, syntax, and behavior on the ES-Discuss mailing list. Recently, JavaScript inventor Brendan Eich suggested that, in order to get more discussion going, I write up a list of regex changes to consider for future ECMAScript standards (or as he humorously put it, have my "95 [regex] theses nailed to the ES3 cathedral door"
JavaScript Regex :: XRegExp
“Regular Expressions Cookbook manages to be simultaneously accessible and almost ridiculously comprehensive.” —Jeff Atwood Recommended regex tools: • RegexBuddy • RegexMagic • PowerGREP What is it? XRegExp provides augmented (and extensible) JavaScript regular expressions. You get modern syntax and flags beyond what browsers support natively. XRegExp is also a regex utility belt with tools to make
Faster JavaScript Trim
Note 1: The comparison is based on trimming the Magna Carta (over 27,600 characters) with a bit of leading and trailing whitespace 20 times on my personal system. However, the data you're trimming can have a major impact on performance, which is detailed below. Note 2: trim4 and trim6 are the most commonly found in JavaScript libraries today. Note 3: The aforementioned bad implementation is not in
正規表現にコメントをつける - 素人がプログラミングを勉強していたブログ
Perl風 RegExp.prototype.__defineGetter__( 'x', function () { if ('__x' in this) return this.__x; var source = this.source; var flags = ''; var re; source = source.replace(/([^\\]) +/g, '$1'); // trim spaces source = source.replace(/([^\\])#.*(?:\\\n|$)/g, '$1'); // trim comments source = source.replace(/\\(?:([# ])|\n)/g, '$1') // trim backslashes if (this.global) flags += 'g'; if (this.ignoreCase)
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http://twitter.com/javascripter/status/1381201852