Nodejs Array Convert toSentence(connector)

Method Source Code

/**//from   w w w  .  j ava  2  s .c o  m
 * @class Array
 * Extensions to the array class
 */

/**
 * Turns an array into a sentence, joined by a specified connector - e.g.:
 * ['Adama', 'Tigh', 'Roslin'].toSentence(); //'Adama, Tigh and Roslin'
 * ['Adama', 'Tigh', 'Roslin'].toSentence('or'); //'Adama, Tigh or Roslin'
 * @param {String} connector The string to use to connect the last two words. Usually 'and' or 'or', defaults to 'and'
 */
Array.prototype.toSentence = function(connector) {
  connector = connector || 'and';
  
  var sentence = "";
  if (this.length <= 1) { 
    sentence = this[0];
  } else {
    //we'll join all but the last error with commas
    var firstErrors = this.slice(0, this.length - 1);
    
    //add the last error, with the connector string
    sentence = String.format("{0} {1} {2}", firstErrors.join(", "), connector, this[this.length - 1]);
  }
  return sentence;
};

Related

1. toOneThousand()

   Array.prototype.toOneThousand = function() {
     for (var i = 1; i < 1001; i++) {
       this.push(i);
     return this;
   },
   

2. toOneThousand()

   Array.prototype.toOneThousand = function(){
       var start = 10;
       var end = 1000;
       for(var i = start; i <= end; i += 10){
           this.push(i);
      return this;
   var oneToOneThousand = [].toOneThousand();
   ...
   

3. toOneThousand()

   Array.prototype.toOneThousand = function() {
     return Array.range(1000, 10);
   };
   

4. toOneThousand()

   Array.prototype.toOneThousand = function(){
     b = [];
     for(i=10; i<=1000; i+=10){
       b.push(i);
     return b
   

5. toOneThousand()

   Array.prototype.toOneThousand = function() {
     'use strict';
     var arr = [];
     for (var i = 10; i <= 1000; i += 10) {
       arr.push(i);
     return arr;
   };
   

6. toSet()

   Array.prototype.toSet = function () {
       var temp = [];
       this.forEach(function (e) {
           if (temp.indexOf(e) === -1)
               temp.push(e);
       });
       return temp;
   

7. toSet()

   Array.prototype.toSet = function(){
     var set = [];
     for (var i=0; i<this.length; i++){
       if (!set.contains(this[i])){
         set.push(this[i]);
     return set;
   

8. toSource(seen)

   Array.prototype.toSource = function(seen){
     var source, i = 0, j = this.length;
     seen = seen || [this];
     source = '[';
     for(;i<j;i++){
       source+= Object.sourceOf(this[i], seen, '[]');
       if( i < j - 1 ) source+= ', ';
     source+= ']';
   ...
   

9. toStrGen(originStr)

   Array.prototype.toStrGen=function(originStr){
     if(Object.prototype.toString.call(originStr).slice(8,-1)==="Array"){
       return this.map(function(i){
         return originStr.join(i);
       }).reduce(function(m,n){return m+n+'\b'}, "");
   };