own use of loading JS files, supporting multiple files, incompatible IE
Copy Code code as follows:
/**
* Load JS file
* @param {string | | | | array} URL JS path
* @param {Function} fn load Complete callback
* @return {Object} game objects
* @example
* Getscript ("Url.js", FN)
* Getscript (["Url-1.js", "Url-2.js"],FN)
*/
Game.getscript = (function () {
var cache = {};//internal cache URL, next time do not request
return function (URL, fn) {
if ("string" = = typeof (URL)) {
url = [url]; If not an array with a set
};
var i = 0,//loop
OK = 0,//loaded successfully several JS
Len = url.length,//altogether several JS
Head = document.getElementsByTagName ("head") [0],
JS, _url,
create = function (URL) {//JS
JS = document.createelement ("script");
Js.type = "Text/javascript";
js.src = URL;
Head.appendchild (JS);
Return JS;
};
for (; i < Len;) {
if (cache[encodeuricomponent (_url = url[i++])]) {//If loaded
(++ok >= len && fn) && fn ()//If all JS is loaded, execute the callback
Continue
}
Cache[encodeuricomponent (_url)] =!0;//Set Cache
JS = Create (_url);//JS
fn && (js.onload = function () {
if (++ok >= len) {//If all JS is loaded then the callback is executed
FN ();
}
});
};
Head = JS = _url = create = null;
return this;
}
})();
