javascript - Array doesn't keep content, maybe something with declaration -

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i have array declared in else structure

var days = new array(); $.ajax({       url: 'someurl',       datatype: 'jsonp',       success: processjson }); 

i process data ajax call in processjson function

function processjson(jsondata) {     var weather = jsondata.data.weather;     for(var key in weather) {         var day = weather[key];          days.push(new array(day.tempmaxc, day.type));     } } 

i add other arrays days-array.

if check in console (in processjson-function), length three/

then when want use variable in code under the ajax-call, nothing works , when check length it's 0. guess it's declaration?

is code under ajax call happening after processjson function? call processjson function asynchronous , happens after ajax call finishes. code following might happen before. might timing thing. if need array other processing should have in callback or after know callback has been finished.