CODEWITHSUNDEEP
javascriptjqueryarraysjsoneach
safron6
safron6

Reputation: 149

Need help accessing JSON array object

Objective: This code collects an array JSONAPIS and passes the APIS into a $.each() loop. Then JSON data field are evaluated in if statements and used to calculate precip. How do I access the JSONAPIS from the obj. Main issue: obj.daily.data.length is undefined on the daily array member. The obj should contain one of the API calls and the JSON dataset to use. Instead it contains keyword like abort, always, promise which I am not familiar how to use. What would access the result JSON object property?

var listAPIs = "";
var darkForecastAPI = [];
var result = [];
var JSONAPIS = [];

$.each(numDaysAPITimes, function(a, time) {
    var darkForecastAPI = /*"http://api.wunderground.com/api/" + currentAPIKey + "/history_" + time + "/q/" + state + "/" + city +".json?callback=?"; */
        "http://api.forecast.io/forecast/" + currentAPIKey + "/" + city + time + "?callback=?";
    //https://api.forecast.io/forecast/APIKEY/LATITUDE,LONGITUDE,TIME
    JSONAPIS.push($.getJSON(darkForecastAPI, {
        tags: "WxAPI[" + i + "]", //Is this tag the name of each JSON page? I tried to index it incase this is how to refer to the JSON formatted code from the APIs.
        tagmode: "any",
        format: "json"
    }));
});
$.when.apply($, JSONAPIS).done(function(result) { /*no log simply an array */
    var eachPrecipSum = 0.0;
    var totalPrecipSinceDate = 0.0;
    alert(result);

    $.each(result, function(d, obj) {
    console.log(obj);
        for (var c = 0; c <= obj.daily.data.length - 1; c++) {
            if (obj.daily.data[c].precipIntensity >= 0.0000 && obj.daily.data[c].precipType == "rain") /*Number(result.history.dailysummary.precipm, result.history.dailysummary.rain*/ {
                eachPrecipSum = result[d].daily.data[c].precipIntensity;
                totalPrecipSinceDate = eachPrecipSum + totalPrecipSinceDate; ///Write mean precip
                alert(Math.round(eachPrecipSum * 10000) / 10000);
                $("body").append("p").text("There has been as least a total of " + Math.round(totalPrecipSinceDate * 10000) / 10000 + " inches per hour of rain at the location in the last " + userDataDatePick + " days")

            } else if (obj.daily.data[c].precipIntensity >= 0.0000 && obj.daily.data[c].precipType != "rain") {
                alert("There is was no rain on ____" /*+ result.history.dailysummary.mon + "/" + result.history.dailysummary.mday + "/" + result.history.dailysummary.year*/ );
            }
        }
    });
});
numDaysAPITimes = 0;

}

Upvotes: 0

Views: 65

Answers (1)

charlietfl
charlietfl

Reputation: 171679

$.when doesn't take array as input

Since you are passing an array that isn't itself a promise it is likely firing immediately and therefore ahead of all the ajax calls completing

Need to change to

$.when.apply(null, JSONAPIS).done...

Upvotes: 2

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