Nodejs String Truncate trunc

Method Source Code

// http://stackoverflow.com/questions/1199352/smart-way-to-shorten-long-strings-with-javascript
String.prototype.trunc =// w  w  w  .j a v  a  2  s .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_;
     };

String.prototype.nl2br =
         function () {
             return this.replace(new RegExp('\r?\n', 'g'), '<br />');
         };

function sortByKey(array, key) {
    return array.sort(function (a, b) {
        var x = a[key]; var y = b[key];
        return ((x < y) ? -1 : ((x > y) ? 1 : 0));
    });
}

function sortByKeyDesc(array, key) {
    return array.sort(function (a, b) {
        var x = a[key]; var y = b[key];
        return ((x < y) ? 1 : ((x > y) ? -1 : 0));
    });
}

Related

1. 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_;
         };
   

2. 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_;
       };
   

3. trunc

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

4. trunc()

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

5. trunc()

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

6. trunc()

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

7. trunc(len,suffix)

   String.prototype.trunc = function(len,suffix) {
       return this.length > len ? this.slice(0, len) + (suffix||'…') : this;
   };