I am working on a developing a chart using Chart.js and I want to only display te y-axis value in the tool-tip. Currently it displays:

date name_of_line: measurement

ex. Jan 1, 2020, 8:00:00 AM 5th Percentile: 100 oz.

And this is what I want it to look like: 5th Percentile: 100 oz

Here is the code I have so far to format the y-axis tooltip:

callbacks: {
                    label: function(context) {
                        let label = context.dataset.label || '';

                        if (label) {
                            label += ': ';
                        }

                        if (context.parsed.y !== null) {
                            label += new Intl.NumberFormat('en-US').format(context.parsed.y);
                            label += ' oz';
                        }

                        return label;
                    }
}