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Posted By

ChaosKaizer on 11/23/07


Tagged

javascript DOM snippet


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jitScript - safe append javascript with registry handler. prevent duplicated

Published in: JavaScript 

URL: http://blog.kaizeku.com

var lib = ['foo.js','foo.js','foo2.js','foo.js','foo333.js','foo2.js']; var slib = 'fooooo.js';

lib.jitScript(); // append foo.js, foo2.js & foo33.js slib.jitScript(); // append fooooo.js

enable firebug console JitScriptDebug = true;

validate scripts lib.isJsLoad();

Embed | Plain TextExpand 
  1. var regJs = "";
  2. var JitScriptDebug = false;
  3.  
  4. var kaizekuJitScript = { 
  5.   src: function(){ kaizekuJitScript.jitScript(this);},	
  6.   jitScript: function(src){  	
  7.   var iArray = (src instanceof Array) ? src : src.split(/s*,s*/) ;  	
  8.   for (i = 0; m = iArray.length, i < m; i++){
  9. 	var uri = iArray[i];
  10. 	  if (regJs.indexOf(uri) ==- 1) {  	
  11. 		var s = document.createElement('script');
  12. 		s.src = uri;
  13. 		if (s instanceof Object){  		
  14. 			try{  
  15. 			document.body.appendChild(s);
  16. 			} catch(e){
  17. 				document.write('<script type="text/javascript" src="'+uri+'"><\/script>');
  18. 			}  		
  19. 	  	}  	
  20. 			regJs += uri + "|";
  21. 		} else {	
  22. 			if (JitScriptDebug){
  23. 				kaizekuJitScript.fireBuglog("Reject duplicated entries: %s",uri);
  24. 				kaizekuJitScript.displayloadedJS();
  25. 			}
  26. 		}
  27. 	}
  28. },
  29. isJsLoad: function(){
  30. 	var iArray = (this instanceof Array) ? this : this.split(/s*,s*/) ; 
  31. 	var d = regJs;
  32. 	for (i = 0; m = iArray.length, i < m; i++){
  33. 		var n = iArray[i];
  34. 		var r = (d.indexOf(n) ==- 1) ? false : true;
  35. 		if (JitScriptDebug) kaizekuJitScript.fireBuglog(n + " %s",r);
  36. 		return r;		 
  37. 	}	
  38. },
  39. fireBuglog:function(str,ref){ if(typeof console != "undefine") { console.log(str,ref)} },
  40.  
  41. displayloadedJS:function(display){ 
  42. 	var ln = 'Loaded script\n', js = regJs.split("|");
  43. 	for(var i =0; i < (js.length - 1 ); i++){
  44. 		var str = '('+(i+1)+') : ' + js[i] + '\n';	ln += str;			
  45. 	}	
  46. 	( (display == false ) ? alert(ln) : kaizekuJitScript.fireBuglog("%s",ln) );
  47. }
  48. };
  49.  
  50. Array.prototype.jitScript = kaizekuJitScript.src;
  51. String.prototype.jitScript = kaizekuJitScript.src;
  52. Array.prototype.isLoadJs = kaizekuJitScript.isJsLoad;
  53. String.prototype.isLoadJs = kaizekuJitScript.isJsLoad;

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Posted By: ChaosKaizer on November 23, 2007

there is missing letter online 17 <\/script>');

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