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problem with iterating through the JSON object

Answer 1

+3 A:

Don't use quotes within $("body").append("+item.temperature+"); in the .append() part.

should be

$(document.body).append(item.temperature);

Writting that expression with quotes like you did, just adds a string over and over. Java//Ecmascript interpretates anything withing quotes as a string literal.

Notice that I also replaced "body" with document.body. That has mostly performance // access reasons, so better karma.

jAndy 2010-07-12 17:14:22

Answer 2

+1 A:

Your code is iterating through, but you're appending "+item.temperature+", don't you want to do something like

$("body").append("Temp is " + item.temperature);

or

$("body").append(item.temperature);

rchern 2010-07-12 17:14:32

Answer 3

A:

"+item.temperature+" means a string which is "+item.temperature+"

"pre" + item.temperature + "post" will concatenate the variable to the strings.

$.getJSON('http://ws.geonames.org/weatherJSON?north=90&amp;south=-9.9&amp;east=-22.4&amp;west=55.2', 
  function (data) {
    $.each(data.weatherObservations, function (i, item) {
        $("body").append(item.temperature + ",");
        if (i == 3) return false;
    });
    alert(data.weatherObservations[0].temperature);
});

galambalazs 2010-07-12 17:16:47

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