14 May, 2009
Why doesn’t Mootools have a String.truncate() method?
Posted by: michael In: Uncategorized
I need a quick way to truncate strings! I’m surprised that neither MooTools’ String.js or String.Extras.js has such a method. They have so many super-awesome functions, methods and extensions (I especially love the Date.js extensions!!). Yeah, I really love mootools, and I feel compelled to share with the community. So anyway, I wrote out a simple, straightforward String.truncate() function:
Comments, suggestions, corrections and extensions are always welcomed!
String.implement({ /** * String.truncate(max, atChar, trail) * * ++All parameters are optional. * @param max = (integer) maximum length of truncated string. Defaults to 100 chars. * @param atChar = (string) truncate at the last index of this string. If not found, just truncates to max length. * If null, does not search and truncates to max length. * @param trail = (string) what you want appended to the end of the returned string * * @author Michael Fuery, Fuery Solutions, Inc. http://www.fuerysolutions.com/ * * +Requires MooTools Core 1.2.2 */ truncate:function(max, atChar, trail){ var s = this.trim(); if(s.length<1) return ''; if(!$defined(max)) var max = 100; else max = max.toInt(); if(!$defined(atChar)) var atChar=' '; // break at space else if(atChar == null) var atChar=false; if(!$defined(trail)) var trail = '...'; if(s.length > max) { var i=0; s = s.slice(0,max); if(atChar){ if((i = s.lastIndexOf(atChar)) != -1){ s = s.substring(0, i); }else{ s = s.substring(0, max); } } s += trail; } return s; } });