2nd value in javascript array always unidentified

Question

Got this script:

<script type="text/javascript">
var imones = [];
imones.push('example.com');
imones.push('cnn.com');
imones.push('apple.com');


var beforeloadingtime = (new Date()).getTime();
var beforeTime = [];
beforeTime[0] = beforeloadingtime;
$.each(imones, function (index, value) {
    var jsonnuorodos = "http://anyorigin.com/get?url=" + imones[index] + "&callback=?";
    $.getJSON(jsonnuorodos, function (data) {
        var iframe = $("#output")[0];
        var doc = iframe.document;
        if (iframe.contentDocument) {
            doc = iframe.contentDocument;
        } else if (iframe.contentWindow) {
            doc = iframe.contentWindow.document;
        }
        doc.open();
        doc.writeln(data.contents);
        doc.close();
        var loadingtime = (new Date()).getTime();
        beforeTime.push(loadingtime);

        var result;
        result = (beforeTime[index + 1] - beforeTime[index]) / 1000;
        console.log("result - " + result);
    });
});
</script>

In console i get these results:

result - 1.741 
result - NaN 
result - 0.86

I am getting NaN on my 2nd result because beforeTime[index+1] value is always unidentified.

Edit: if i write console.log("index= "+[index]); console.log("index+1= "+[index+1]); i am getting:

index= 0 
index+1= 1 
index= 2
index+1= 3
index= 1
index+1= 2

where it should have been:

index= 0 
index+1= 1 
index= 1
index+1= 2
index= 2
index+1= 3

you should consider following the rules of this community and format your javascript so it becomes readable. — GottZ
– GottZ, Commented Mar 1, 2013 at 11:22

uoryon · Accepted Answer · 2013-03-01 11:45:51Z

1

maybe the reason is that you use the $.getJson and you use $.eachto create this function. That is nonsynchronous. The index=3 's response speed faster than index=2, so....

answered Mar 1, 2013 at 11:45

uoryon

3592 silver badges10 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

user1894929 · Accepted Answer · 2013-03-01 11:53:58Z

0

Fixed it by adding a simple for loop:

for (i=0;i<4;i++){
var result;
result = (beforeTime[i+1] - beforeTime[i]) / 1000;
}

answered Mar 1, 2013 at 11:53

user1894929

1995 silver badges19 bronze badges

Collectives™ on Stack Overflow

2nd value in javascript array always unidentified

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related