[Solved]-Set minimum step size in chart js-Chart.js

if you don't want to show point value (e.g. 0.5) labels you could write a callback function to filter the point value labels instead of using stepsize.

like this:

ticks: {
    min: 0, // it is for ignoring negative step.
    beginatzero: true,
    callback: function(value, index, values) {
        if (math.floor(value) === value) {
            return value;
        }
    }
}

working fiddle here: https://jsfiddle.net/ma7h611l/

update:

as noted by atta h. and lekoaf below, chart.js added the precision property to ticks. it is available since version 2.7.3. see lekoaf's answer how to use this.