show label in tooltip but not in x axis for chartjs line chart

Question

I currently am using a line chart with chart.js, and have a label set that looks like this [\"January 2015\", \"February 2015\", \"March 2015\", \"April 2015\", \"May

Answer 1

Just extend the line chart and replace the xLabels you don't want after your initialization

Chart.types.Line.extend({
    name: "LineAlt",
    initialize: function (data) {
        Chart.types.Line.prototype.initialize.apply(this, arguments);
        var xLabels = this.scale.xLabels
        xLabels.forEach(function (label, i) {
            if (i % 2 == 1)
                xLabels[i] = '';
        })
    }
});


var lineChartData = {
    labels: ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"],
    datasets: [
        {
            fillColor: "#79D1CF",
            strokeColor: "#79D1CF",
            data: [59, 80, 81, 56, 55, 40, 34, 43, 43, 12, 65, 65]
        }
    ]
};

var ctx = document.getElementById("myChart").getContext("2d");
var myLine = new Chart(ctx).LineAlt(lineChartData);

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Fiddle - http://jsfiddle.net/ttz5t3dx/

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