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GitHub30/format.js

Created March 19, 2016 14:51
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format.js
String.prototype.f = function(arg){
var args = typeof arg === 'object' ? arg : arguments,
keys = Object.keys(args).map(function(s){return s.replace(/\\|\(|\)|\|/g,'\\$&');}).join('|');
return this.replace(new RegExp('\\{('+keys+')\\}', 'gm'), function(match, key){return args[key];});
}
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