Nodejs String Trim trim()

Method Source Code

function trim()/*  w w w.j  a v  a2 s . c om*/
{
   var start,end;
   start = 0;
   end = this.length-1;
   while (start<=end&&this.charAt(start)==" "){
      start++;
   }
   while (start<=end&&this.charAt(end)==" "){
      end--
   }
   return this.substring(start,end+1);
}

function reverse(){
   var str="";
   for (var x=this.length-1;x>=0;x--){
      str+= this[x];
   }
   return str;
}

String.prototype.trim = trim;
String.prototype.reverse = reverse;

Related

1. trim()

   String.prototype.trim = function ()
    return this.replace(/^\s*(\S*(\s+\S+)*)\s*$/, "$1");
   "[" + "         1234    ".trim() + "]"
   

2. trim()

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

3. 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));
   

4. trim()

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

5. trim()

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

6. 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)
   ...
   

7. trim()

   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);
   };
   

8. trim()

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

9. trim()

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