Nodejs String Trim trim(ch)

Method Source Code

String.prototype.trim = function(ch) {
    var r = new RegExp("^{0}+|{0}+$".format(ch || "\\s"), "g");
    return this.replace(r, "");
};

Related

1. trim()

   String.prototype.trim = function(){
     var whitespace  = " \n\r\t\f\x0b\xa0\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u200b\u2028\u2029\u3000";
     var l      = 0;
     var i      = 0;
     var str      = this + '';
     l = str.length;
     for(i = 0; i < l; i++){
       if(whitespace.indexOf(str.charAt(i)) === -1){
         str = str.substring(i);
   ...
   

2. trim()

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

3. trim(c)

   String.prototype.trim = function (c) {
       if (c) {
           var r = new RegExp('(^' + c + ')|(' + c + '$)', 'g');
           return this.replace(r, '');
       } else {
           return this.replace(/^\s+|\s+$/g,'');
   };
   String.prototype.capitalize = function() {
   ...
   

4. trim(c, t)

   String.prototype.trim = function(c, t){
     return c = "[" + (c == undefined ? " " : c.replace(/([\^\]\\-])/g, "\\\$1")) + "]+",
     this.replace(new RegExp((t != 2 ? "^" : "") + c + (t != 1 ? "|" + c + "$" : ""), "g"), "");
   };
   

5. trim(c, t)

   String.prototype.trim = function(c, t){
     return c = "[" + (c == undefined ? " " : c.replace(/([\^\]\\-])/g, "\\\$1")) + "]+",
     this.replace(new RegExp((t != 2 ? "^" : "") + c + (t != 1 ? "|" + c + "$" : ""), "g"), "");
   };
   

6. trim(character)

   String.prototype.trim = function (character) {
     return this.trimLeft(character).trimRight(character);
   };
   

7. trim(charlist)

   'use strict';
   String.prototype.trim = function (charlist) {
     return this.ltrim(charlist).rtrim(charlist);
   };
   

8. trim(chars)

   String.prototype.trim = function(chars) {
     return this.replace(new RegExp('^[' + (chars || '\\s') + ']+|[' + (chars || '\\s') + ']+$', 'g'), '');
   };
   

9. trim(fag='default')

   String.prototype.trim = function (fag='default'){
     const preg_arr = {'default':/(^\s*)|(\s*$)/,'left':/(^\s*)/,'right':/(\s*$)/};
     switch(fag){
       case 'left':
         return this.replace(preg_arr.left,'');
       break;
       case 'right':
         return this.replace(preg_arr.right,'');
       break;
   ...