Custom tooltip contents @ ngx-charts | Angular2+ | TypeScript
问题 I've been trying to set a custom label in a line chart's tooltip , e.g., modified number of minutes in HH:mm format (74 min --> 1:14), for quite some time now, but unfortunately without any success. Displaying the value as 1.283(...3) is not an alternative. Number to HH:mm as tooltip label Does anybody know how to preserve the x and y axis values (a date and a number respectively), and modify the tooltip display value? For example: https://swimlane.github.io/ngx-charts/#/ngx-charts/line-chart