Utilizing JavaScript for loops to extract the final element from an array

I am facing an issue with the second loop within a function that goes through a JSON file. The problem is that it only returns the last item in the array. I need to figure out how to fix this because the chart object should be created on each iteration, based on my understanding.

var looper = function(sec0, vz, lOrR) {

    $('#' + lOrR + 'Title').text(sec0);

    for (var i = 0; i < vz[0]['Areas'].length; i++) {
        var tText = Object.keys(vz[0]['Areas'][i]);
        var root = vz[0]['Areas'][i][tText][0];
        barFactory(root, sec0, lOrR, i, tText);

    }

    function barFactory(sec1, sec0, lOrR, i, tText) {
        var dataName;

        for (var j = 0; j < sec1[sec0].length; j++) {
            charts.title.text = sec1[sec0][j]["Label"];
            dataName = sec1[sec0][j]['Metrics'][5]['Rep Res. %'].slice(0, -1);
            charts.series[0].name = dataName;
            charts.series[0].data = [parseFloat(dataName)];
            chart = new Highcharts.Chart(charts);
        }
    }
}

Answer №1

Just a couple of points to consider:

  • Barbara has pointed out that there doesn't seem to be any changes being made to the renderTo parameter.
  • Using the same object for chart creation could potentially lead to errors in your code.

My suggestion would be:

var dataName = sec1[sec0][j]['Metrics'][5]['Rep Res. %'].slice(0, -1);
chart = new Highcharts.Chart(
    Highcharts.merge(charts, {
        chart: { 
           renderTo: new_container_variable
        },
        title: {
           text: sec1[sec0][j]["Label"]
        }, 
        series: [{
            data: [parseFloat(dataName)],
            name: dataName
        }] 
    })
 );

Another thing to check is whether

dataName = sec1[sec0][j]['Metrics'][5]['Rep Res. %'].slice(0, -1);
is getting the correct value. You can use console.log(dataName); to verify. It's important to ensure that the values being passed are correct and Highcharts is functioning as expected.

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