TypeError: Cannot read property 'null' of undefined

[haschu]

I couldn't reproduce the issue in a plunk, therefore I made a screenshot from the browser console:

This happens for some reasons in one of our projects.

The problem is in scale.time.js:

getPixelForTick: function(index, includeOffset) {
    return this.getPixelForValue(this.tickMoments[index], null, null, includeOffset);
},

null,null is passed to: this.getLabelMoment(datasetIndex, index); here:

getPixelForValue: function(value, index, datasetIndex, includeOffset) {
    var labelMoment = value && value.isValid && value.isValid() ? value : this.getLabelMoment(datasetIndex, index);

and then this.labelMoments[null][null] failed:

getLabelMoment: function(datasetIndex, index) {
    return this.labelMoments[datasetIndex][index];
}

Going to post a pull request for that tomorrow.

[zpriddy]

This happens no matter what i set the value in getPixelForValue on line 169

chart_test.txt

[zpriddy]

So this seems to work:

ctx.fillRect(xaxis.getPixelForValue("THIS IS IGNORED",13,1), yaxis.top, xaxis.getPixelForValue("THIS IS IGNORED",10,1)-xaxis.getPixelForValue("THIS IS IGNORED",13,1), yaxis.bottom);

So you have to do getPixelForValue("THIS DOESN'T MATTER", , )

Ideally we should be able to call getPixelForValue( new Date [.....])

[haschu]

@zpriddy Sorry, I forgot about this issue. I'm going to post a pull request with a fix as soon as I can.