Nodejs Array Clear clear()

Method Source Code

// common functions.
Array.prototype.clear = function() {
    while(this[0]) {
        this.splice(0,1);//from   w  ww.ja v a2s .com
    }
}
 
function $(id) {
    return document.getElementById(id);
}
//-------------------------------------------------
// add map function to array.
//-------------------------------------------------
Array.prototype.map_init = function() {
    this.keys = [];
}
 
Array.prototype.map_set = function(key, value) {
    if (this[key] == undefined) {
        this.keys.push(key);
    }
    this[key] = value;
}
 
Array.prototype.map_get = function(key) {
    var index = this.keys.indexOf(key);
     
    if (index == -1) {
        console.log("key: " + key + " is not exist.");
        return null;
    }
     
    var key = this.keys[index];
    return this[key];
}
 
Array.prototype.map_del = function(key) {
    var index = this.keys.indexOf(key);
    if (index != -1) {
        this.keys.splice(index,1);
    }
    if (this[key]) {
        delete this[key];
    }
}
 
Array.prototype.map_keys = function() {
    return this.keys;
}
//-------------------------------------------------

Related

1. clear()

   Array.prototype.clear = function()
     this.splice(0, this.length);
   };
   

2. clear()

   Array.prototype.clear = function() {
       while (this.length > 0) {
           this.pop();
   };
   

3. clear()

   Array.prototype.clear = function() {
     this.length = 0; 
   };
   

4. clear()

   var util = require('util');
   Array.prototype.clear = function () {
       while (this.length) {
           this.pop();
   };
   Object.mapObjectToArray = function (object) {
       var keyValuePair = [];
       Object.keys(object).map(function (key) {
   ...
   

5. clear()

   Array.prototype.clear=function(){
       this.length=0;
   

6. clear()

   ;(function(){
   Array.prototype.clear = function() {
     for(var i=0,l=this.length;i<l;i++) {
       var r = this.pop();
       if(typeof(r)=='object')
         if(r.constructor.name=='Array')
           r = r.clear();
         else if('clear' in r) 
           r = r.clear();
   ...
   

7. clear()

   Array.prototype.clear = function(){
       this.length = 0;
   };
   

8. clear()

   Array.prototype.clear=function(){
     this.length=0;
   

9. clear()

   Array.prototype.clear = function() {
     return this.splice(0,this.length);
   };