Nodejs String Trim trimfast()

Method Source Code

/*//w w  w  .j  a  v a  2  s  .  com
 * super-fast javascript trim based on http://blog.stevenlevithan.com/archives/faster-trim-javascript
 */

// prototype in our new trim method (named differently to not offend others relying on native version)
String.prototype.trimfast = function() {
   var   str = this.replace(/^\s\s*/, ''),
      ws = /\s/,
      i = this.length;
   while (ws.test(this.charAt(--i)));
   return str.slice(0, i + 1);
};

// jQuery extension to get the value, trim and return it (often useful for forms)
(function($){
  $.fn.trimval = function() {
    return this.val().trimfast();
  };
})(jQuery);

Related

1. trimToLength(m)

   String.prototype.trimToLength = function(m) {
     return (this.length > m) 
       ? jQuery.trim(this).substring(0, m).split(" ").slice(0, -1).join(" ") + "..."
       : this;
   };
   

2. trimToLength(m)

   String.prototype.trimToLength = function(m) {
     return (this.length > m) ? jQuery.trim(this).substring(0, m).split(' ').slice(0, -1).join(' ') : this.replace('"', '');
   };
   

3. trimToPx(length)

   String.prototype.trimToPx = function(length)
       var tmp = this;
       var trimmed = this;
       if (tmp.visualLength() > length)
           trimmed += "...";
           while (trimmed.visualLength() > length)
               tmp = tmp.substring(0, tmp.length-1);
               trimmed = tmp + "...";
       return trimmed;
   

4. trimTrailZeroes()

   String.prototype.trimTrailZeroes = function() {
       return this.replace(/(.\d*?)0+$/, "$1").replace(/\.$/, "");
   };
   

5. trim_(str)

   var trim_ = function (str) {
       return str.replace(/(^\s*)|(\s*$)/g, "");
   };
   

6. trimj()

   String.prototype.trim  = jCube.String.trim  = function () {
     return this.replace( /^\s+|\s+$|^\n+|\n+$|^\t+|\t+$/g, "");
   

7. Trim( aimStr )

   String.prototype.Trim = function( aimStr )
       var str = this;
       var re = My.RegExp.InvolvedCharsRegExp;
       var reStart, reEnd;
       if ( aimStr )
           aimStr = aimStr.replace( re, '\\$1' );
           reStart = new RegExp( '^(' + aimStr + ')+' );
   ...
   

8. Trim()

   String.prototype.Trim = function(){
     return this.replace(/(^\s*)|(\s*$)/g, "");
   };
   

9. Trim()

   String.prototype.Trim = function() {
     return this.lTrim().rTrim();
   };