CODEWITHSUNDEEP
javascriptjquery.netarraysasp.net-mvc
mskuratowski
mskuratowski

Reputation: 4124

Javascript array always undefine

I'm trying push some values to javascript array, but I always have array of undefined values.

    var picArray = [];
    var picTmp;
    for(var i =0; i < 4; i++)
    {
        html2canvas($("#graph-"+i), {
            onrendered: function(canvas) {
                picTmp = canvas.toDataURL();
            }
        });
        picArray.push(picTmp);
    }
    console.log(picArray);

All views are rendered. What's am I doing wrong ?

Upvotes: 0

Views: 59

Answers (1)

Rohan Kumar
Rohan Kumar

Reputation: 40639

I think your plugin is working asynchronously, so fill the array after your onrendered callback like,

html2canvas($("#graph-"+i), {
   onrendered: function(canvas) {
       picTmp = canvas.toDataURL();
       picArray.push(picTmp); // add here after render callback
   }
});

Upvotes: 1

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