Nodejs String Trim trim()

Method Source Code

/**//w w w  .  j  av  a2  s  .  com
 * Probably the best general purpose trim algorithm which
 * handles even exceptionally long strings pretty fast.
 *
 * See http://blog.stevenlevithan.com/archives/faster-trim-javascript
 * for more details about different approaches.
 */
String.prototype.trim = function() {
  var str = this.replace(/^\s\s*/, ''),
      ws  = /\s/,
      i   = str.length;

  while (ws.test(str.charAt(--i)));
  return str.slice(0, i + 1);
};

Related

1. trim()

   var str="  sds "
   console.info("--"+str.trim()+"--");
   console.info(str.charAt(2));
   var str1="  aaa ff ";
   console.info("|"+str1.trim()+"|");
   String.prototype.trim=function() {
     var regular=/(^\s*)|(\s*$)/gi;
     return(this.replace(regular,""));
   var str2="Hello ";
   var str3="Word ";
   var str4=" job!";
   console.info(str2.concat(str3,str4));
   console.info(str2.substring(0,2));
   

2. trim()

   String.prototype.trim = function() {
     return this.replace(/^\s+|\s+$/g, '');
   };
   var str = "     foo      bar            j";
   console.log(str.trim().split(' '));
   

3. trim()

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

4. trim()

   function trim()
     var start,end;
     start = 0;
     end = this.length-1;
     while (start<=end&&this.charAt(start)==" "){
       start++;
     while (start<=end&&this.charAt(end)==" "){
   ...
   

5. trim()

   String.prototype.trim = function () {
     var reExtraSpace = /^\s+(.*?)\s+$/;
     return this.replace(reExtraSpace, "$1");
   };
   var script = document.getElementsByTagName("script");
   var template = {};
   for(var i = 0; i < script.length; i++){
     if(script[i].getAttribute("type") == "template"
       && script[i].id)
   ...
   

6. trim()

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

7. trim()

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

8. trim()

   String.prototype.trim = function()
       return this.replace(/^\s+/g, '').replace(/\s+$/g, '');
   };
   

9. trim()

   String.prototype.trim = function() {
     var str = this.replace(/^\s+/, '');
     for (var i = str.length - 1; i >= 0; i--) {
       if (/\S/.test(str.charAt(i))) {
         str = str.substring(0, i + 1);
         break;
     return str;
   ...