src/generic-functions.ts

   1 //unassociated functions
   2 class Generics{
   3         static storageAvailable(storage_type:string):number  {
   4                 try {
   5                         var storage = window[storage_type];
   6                         storage.setItem('x', 'x');
   7                         storage.removeItem('x');
   8                         return 1;
   9                 }
  10                 catch(e) {
  11                                 return e
  12                 }
  13         }
  14
  15         //What Browser
  16         static detectBrowser():number {
  17                 if((navigator.userAgent.indexOf('Opera') || navigator.userAgent.indexOf('OPR')) != -1 )
  18                 {
  19                         console.log('Opera');
  20                         return 0;
  21                 }
  22                 else if(navigator.userAgent.indexOf('Chrome') != -1 )
  23                 {
  24                         console.log('Chrome');
  25                         return 1;
  26                 }
  27                 else if(navigator.userAgent.indexOf('Safari') != -1)
  28                 {
  29                         console.log('Safari');
  30                         return 2;
  31                 }
  32                 else if(navigator.userAgent.indexOf('Firefox') != -1 )
  33                 {
  34                         console.log('FireFox');
  35                         return 3;
  36                 }
  37                 else if(navigator.userAgent.indexOf('MSIE') != -1 )
  38                 {
  39                         console.log('IE');
  40                         return 4;
  41                 }
  42                 else
  43                 {
  44                         console.log('Other');
  45                         return -1;
  46                 }
  47         }
  48
  49
  50         //gets json keys by regex test
  51         static getJSONPropertiesByKeyName(JSON_obj:object, regex_string:string):string[]{
  52                 var regex:any = new RegExp("^" + regex_string + "$");
  53                 var rtnArray:string[] = Array();
  54                 for (let key in JSON_obj)
  55                         if (regex.test(key))
  56                                 rtnArray.push(key);
  57                 return rtnArray;
  58         }
  59
  60         //send alert to 4chanx
  61         static alert4ChanX(message:string, type:string, time?:number):void{
  62                 var detail:object = {type: type, content: message, lifetime: time};
  63                 var event:any = new CustomEvent('CreateNotification', {bubbles: true, detail: detail});
  64                 document.dispatchEvent(event);
  65         }
  66
  67         static getJSON = function(url, callback, extra, ...all_extra) {
  68                 var xhr:any = new XMLHttpRequest();
  69                 xhr.open('GET', url, true);
  70                 xhr.responseType = 'json';
  71                 xhr.onload = function() {
  72                         var status = xhr.status;
  73                         if (status == 200) {
  74                                 callback(null, xhr.response, extra, ...all_extra);
  75                         } else {
  76                                 callback(status);
  77                         }
  78                 };
  79                 xhr.send();
  80         };
  81
  82
  83 }
  84