[Solved]-Horizontal 'limit' line in Chart.js-Chart.js

yes you can actually do that. you want the horizontal marker line so you need to add this code inside your y-axis

plotlines: [{
            color: '#ff0000',
            width: 2,
            value: .50 * 200 // the marker value will be 100
                             // or you can just set its value to 100
}]