Nodejs String Truncate trunc(n,useWordBoundary)

Method Source Code

/*//w  ww. j a va2  s  . co m
 * Copyright 2012-2013 inBloom, Inc. and its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

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;
};

Related

1. 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;
   };
   

2. 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;
   

3. 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;
   ...
   

4. 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;
   ...
   

5. 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_;
   };
   

6. trunc()

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

7. trunc()

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

8. trunc()

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

9. truncar(number,cadena)

   String.prototype.truncar = function(number,cadena) {
     if(number < 0)
       return this;
     if(cadena){
       return this.substr(0,number)+cadena;
     return this.substr(0,number);