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$Underscore js regex example: >> http://bit.ly/2hOyQ1C << (download) underscore github underscore each example underscore js cdn underscore template lodash js underscore js tutorial underscore vs lodash underscore find 17 Aug 2017 The search() method executes a search for a match between a regular expression and this String object. Syntax. str .search( regexp ) 14 Mar 2013 +b; }); return (new RegExp(pattern)).test(str); }; Underscore.js has a handy function that I'll demonstrate, but you could easily build the cache 20 Sep 2017 These patterns are used with the exec and test methods of RegExp, and with the match, replace, This chapter describes JavaScript regular expressions. Matches any alphanumeric character including the underscore. 24 Oct 2012 You could do: filter = function (collection, key, regex) { return _.filter(collection, function(obj){ return obj[key].match(regex);}); }; 3 Oct 2012 If you look at the _.template implementation, you'll see the root of your one regular expression via alternation. var matcher = new RegExp([ 15 Feb 2016 Short tutorial with code samples on javascript replace and replacing strings in That only caught the first space and replaced it with an underscore. . In the simple example above, the / / starts the RegEx expression; the s is 14 Mar 2013 Here's the situation: 1) You have a string in JavaScript, like var fruit = ''. 2) Underscore. Underscore.js provides a contains method (docs): All ECMAScript 5 native function implementations that we hope to use are var testRegexp = RegExp(source); var replaceRegexp = RegExp(source, 'g'); 31 Jul 2013 You need to put the - at the end (or at the beginning) of the class if you want it to be considered as a real char: /^[a-zA-Z0-9_&-]+$/. You could Iterates over a list of elements, yielding each in turn to an iteratee function. The iteratee is bound to Returns true if object is a RegExp. _.isRegExp(/moe/); =>$