Nodejs Array Convert toList(separator, aggregator)

Method Source Code

Array.prototype.toList = function(separator, aggregator) {
   aggregator = aggregator || separator;
   return this.join(aggregator, [this.join(separator, this.slice(0, -1)), this.slice(-1)]);
};

Related

1. toHexArray()

   Array.prototype.toHexArray = function() {
       var hex_array = [];
       for (var i=0; i < this.length; i++) {
           var val;
           if (typeof(this[i]) === "string") {
               val = parseInt(this[i], 2).toString(16);
           else if (typeof(this[i]) === "number") {
               val = this[i].toString(16);
   ...
   

2. toIntArray()

   Array.prototype.toIntArray = function() {
       var int_array = [];
       for (var i=0; i < this.length; i++) {
           var val = parseInt(this[i], 2);
           int_array.push(val);
       return int_array;
   };
   

3. toInts()

   Array.prototype.toInts = function(){
     return this.map(function(val){
       return parseInt(val, 10);
     });
   };
   

4. toJSON()

   Array.prototype.toJSON = function(){
       var result = [];
       this.forEach(function(item,index){
           result.push( item.toJSON ? item.toJSON() : item );
       });
       return result;
   

5. toJson()

   Array.prototype.toJson = function(){
     return JSON.stringify(this);
   };
   

6. toNumFixed(num)

   Array.prototype.toNumFixed = function (num) {
     for (var i = 0; i < this.length; i++) {
       this[i] = this[i].toNumFixed(num);
     return this;
   

7. toNumber()

   Array.prototype.toNumber = Array.prototype.toNumber || function () {
     let result;
     this.forEach(digit => {
       let power = 10;
       while (digit >= power) {
         power *= 10;
       result = ((result || 0) * power) + digit;
     });
   ...
   

8. toNumbers()

   Array.prototype.toNumbers = function() {
     for (var i=0; i<this.length;i++) {
       var val = Number(this[i]);
       if (!isNaN(val)) {
         this[i] = val;
       } else {
         this[i] = 0;
     return this;
   };
   

9. toNumsOnly()

   Array.prototype.toNumsOnly = function() {
     return this.filter(el => !parseInt(el, 10).isNotNumber());
   };