Javascript adding 2nd dimension not returning results

Question

I have a site made as shown in this jsfiddle:

$.getJSON('eventbrite.json', function(data) {
    var events = [];
    var j = 0;

    for (var i in data) {
        events[i][0] = data[i].event.title;
    }

    $('.btn-lg').click(function() {
        $('#tester').replaceWith("<div id='tester'>" + events[j][0] + "</div>");
        j = j + 1;
    })
    $("div.swiper").on("swipe",function() {
        $('#tester').replaceWith("<div id='tester'>" + events[j][0] + "</div>");
        j = j + 1;
    })
});

I'm trying to get the 2nd dimension to store the event title, so that I can then add event date and distance in events[j][1] and events[j][2].

However, adding the second dimension (ie the events[i][0]) means no results are returned.

Arun P Johny · Accepted Answer · 2013-12-03 16:12:15Z

1

The problem is the for loop, events[i] is undefined so events[i][0] will fail

1.Solution is

for (var i in data) {
    events[i] = [data[i].event.title, data[i].event.some];
}

2.Another is to use $.each() and do

var events = [];
var j = 0;

$.each(data, function(_,item){
    events.push([item.event.title, data[i].event.some])
});

3.A third way is to use $.map()

var j = 0;

var events = $.map(data, function (item) {
    return [[item.event.title, data[i].event.some]]
});

edited Dec 3, 2013 at 16:12

answered Dec 3, 2013 at 16:06

Arun P Johny

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2 Comments

user3057706 Over a year ago

Using the top suggestion, events[i] works, but using events[i][0] does not.

Arun P Johny Over a year ago

@user3057706 it is creating a two dimensional array.. after the for loop try events[0][0] not inside

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