javascript - Only last of multiple ajax requests gets completed -
i'm trying create script allows me make ajax call few lines of code. script works 1 ajax request, when comes handling multiple request @ once fails. have done wrong ?
the code processes last request, while leaving others "loading ...".
here's code:
/**************** related javascript inside html document ****************/ // first request var ajax1 = new ajax_class(); ajax1.meth = "get"; ajax1.file = "ajax_info.txt"; ajax1.elem = "results"; ajax1.send = null; ajax1.ajax_call(ajax1.meth, ajax1.file, ajax1.elem, ajax1.send); ... // third request var ajax3 = new ajax_class(); ajax3.meth = "get"; ajax3.file = "ajax_info3.txt"; ajax3.elem = "results3"; ajax3.send = null; ajax3.ajax_call(ajax3.meth, ajax3.file, ajax3.elem, ajax3.send); /**************** related html inside html document ****************/ <body> <div id="results">nothing has happend yet 1....</div> <div id="results2">nothing has happend yet 2 ....</div> <div id="results3">nothing has happend yet 3 ....</div> </body> /**************** related code inside javascript document ****************/ function ajax_class () { this.meth = "get"; this.file; this.elem; this.send = null; this.ajax_call = function (meth, file, elem, send) { x = new xmlhttprequest(); x.onreadystatechange = function () { if (x.readystate == 4 && x.status == 200) { _id(elem).innerhtml = x.responsetext; } else { _id(elem).innerhtml = "loading ..."; } } x.open(meth , file, true); x.send(send); } } works now, had add "var" in front of x variable
it's @ least partially because each new xmlhttprequest being set same global x, can keep 1 of them. means later references x.readstate , x.responsetext aren't referring "correct" instance.
you'll want declare x when or before setting it's scoped , unique each ajax request:
var x = new xmlhttprequest(); for more info, see difference between using var , not using var in javascript.
Comments
Post a Comment