Nodejs String Truncate trunc

Method Source Code

String.prototype.trunc =/*from  w  w  w  . ja v a2s.c o  m*/
     function(n,useWordBoundary){
         var toLong = this.length>n,
             s_ = toLong ? this.substr(0,n-1) : this;
         s_ = useWordBoundary && toLong ? s_.substr(0,s_.lastIndexOf(' ')) : s_;
         return  toLong ? s_ +'...' : s_;
      };

Related

1. trunc

   String.prototype.trunc =
       function( n, useWordBoundary ){
           var isTooLong = this.length > n,
               s_ = isTooLong ? this.substr(0,n-1) : this;
           s_ = (useWordBoundary && isTooLong) ? s_.substr(0,s_.lastIndexOf(' ')) : s_;
           return  isTooLong ? s_ + '…' : s_;
       };
   

2. trunc

   String.prototype.trunc = 
         function(n){
             return this.substr(0,n-1)+(this.length>n?'…':'');
         };
   

3. trunc

   String.prototype.trunc =
        function (n, useWordBoundary) {
            var toLong = this.length > n,
                s_ = toLong ? this.substr(0, n - 1) : this;
            s_ = useWordBoundary && toLong ? s_.substr(0, s_.lastIndexOf(' ')) : s_;
            return toLong ? s_ + '...' : s_;
        };
   String.prototype.nl2br =
            function () {
   ...
   

4. trunc()

   String.prototype.trunc = String.prototype.trunc ||
         function(n){
             return (this.length > n) ? this.substr(0,n-1)+'…' : this;
         };