Nodejs String Truncate trunc(n)

Method Source Code

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

function inArray(needle, haystack) {
    var length = haystack.length;
    for(var i = 0; i < length; i++) {
        if(haystack[i] == needle) return true;
    }/*from  w w w .j  a  va 2 s .  c  o m*/
    return false;
}
function clone(obj) {
    var target = {};
    for (var i in obj) {
        if (obj.hasOwnProperty(i)) target[i] = obj[i];
    }
    return target;
}

Related

1. trunc(n)

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

2. trunc(n)

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

3. trunc(n)

   String.prototype.trunc = function(n){
      var isTooLong = this.length > n;
      var string = isTooLong ? this.substr(0,n) : this;
      string = isTooLong ? string.substr(0, string.lastIndexOf(' ')) : string;
      return  isTooLong ? string + '...' : string;
   };
   

4. trunc(n)

   String.prototype.trunc = function(n) {
     var longStr = this.length > n;
     var str     = longStr ? this.slice(0, n) : this;
     longStr ? str = str.slice(0, str.lastIndexOf(' ')) : str;
     return longStr ? str + '...' : str;
   

5. trunc(n)

   String.prototype.trunc = String.prototype.trunc || function(n){
       return this.length>n ? this.substr(0, n-1) + '...' : this;
   };
   function inArray(needle, haystack) {
       var length = haystack.length;
       for(var i = 0; i < length; i++) {
           if(haystack[i] == needle) return true;
       return false;
   ...
   

6. trunc(n,useWordBoundary)

   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_;
   };
   

7. trunc(n,useWordBoundary)

   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.startsWith = function (str){
       return this.slice(0, str.length) == str;
   };
   ...
   

8. trunc()

   String.prototype.trunc = String.prototype.trunc ||
     function(n){
       return this.length > n ? this.substr(0,n-1) + "\u2026" : this;
     };
   

9. trunc()

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