Nodejs String Trim trimSpace()

Method Source Code

/*//from   w  ww .ja v a  2  s . co m
 * js99'er - TI-99/4A emulator written in JavaScript
 *
 * Created 2014 by Rasmus Moustgaard <rasmus.moustgaard@gmail.com>
 */

'use strict';

String.prototype.trimSpace = function() {
    var s = this;
    var n = s.length - 1;
    while (n >= 0 && s.charCodeAt(n) == 32) {
        n--;
    }
    return n >= 0 ? s.substr(0, n + 1) : "";
};

Related

1. trim(ws)

   String.prototype.trim = function (ws)
       if(!this.length) return "";
       var tmp = this.stripNL().ltrim().rtrim();
       if(ws) return tmp.replace(/ +/g, ' ');
       else return tmp;
   String.prototype.rtrim = function ()
       if(!this.length) return "";
       return this.replace(/\s+$/g, '');
   String.prototype.ltrim = function ()
       if(!this.length) return "";
       return this.replace(/^\s+/g, '');
   String.prototype.stripNL = function ()
       if(!this.length) return "";
       return this.replace(/[\n\r]/g, '');
   

2. trim2()

   String.prototype.trim2 = function() {
     return this.replace(/^\s+|\s+$/g, '');
   };
   String.prototype.trim = function() {
     return this.replace(/^\s+/, '').replace(/\s+$/, '');
   };
   'foo     '.trim(); 
   '     foo'.trim(); 
   '  foo   '.trim(); 
   ...
   

3. trimBoth(s)

   String.prototype.trimBoth = function(s) {
       return this.replace(new RegExp("^" + s + "+|" + s + "+$", "gm"), "");
   

4. trimChars(charlist)

   String.prototype.trimChars = function(charlist) {
     charlist = charlist || ' \r\n\t';
       var l = 0, i = 0;
       var ret = this;
       l = ret.length;
       for (i = 0; i < l; i++) {
           if (charlist.indexOf(ret.charAt(i)) === -1) {
               ret = ret.substring(i);
               break;
   ...
   

5. trimSlash()

   String.prototype.trimSlash = function () {
       var string = this.trim();
       if (string.charAt(0) == "/") {
           string = string.substring(1);
       if (string.charAt(string.length - 1) == "/") {
           string = string.substring(0, string.length - 1);
       return string;
   ...
   

6. trimSpaces()

   String.prototype.trimSpaces = function () {
     var phrases = this.split(" ");
     var result = "";
     for (var i = 0; i < phrases.length; i++) {
       if (!phrases[i]=="") {
         if (result=="") {
           result = phrases[i];
         } else {
           result += " " + phrases[i];
   ...
   

7. trimStart(c)

   String.prototype.trimStart=function(c)
       c = c?c:' ';
       var i=0;
       for(;i<this.length && this.charAt(i)==c; i++);
       return this.substring(i);
   

8. trimStart(s)

   String.prototype.trimStart = function(s) {
       return this.replace(new RegExp("^" + s + "+", "gm"), "");
   

9. trimString_trim()

   String.prototype.trim = function String_trim()
     this.replace(/^\s+/m, '').replace(/\s+$/m, '');