0👍
datasets: r,
what is the r ?
datasets must be has data.
sample dataset is,
datasets: [
{
label: "states",
data: [120, 60 ,42 ,70, 60, 34, 70, 110, 120, 50],
borderColor: ["rgb(255,0,200)"],
backgroundColor: ["rgb(255,0,200,0.5)"],
},
],I figured out. thanks for the using codepen. I understand the problem. The problem is you used less labels on the chartjs. your data amount much more than labels. the second and third and other data are null at the beginning, for example, second data has 124 null at the begging. and your labels amount is 124. Chartjs created length of the 124 unit chart. therefore you could not see second data in your chart.
you use this labels array. You can figure out the problem easily.
const labels = [
"09:30",
"09:45",
"10:00",
"10:15",
"10:30",
"10:45",
"11:00",
"11:15",
"11:30",
"11:45",
"12:00",
"12:15",
"12:30",
"12:45",
"13:00",
"13:15",
"13:30",
"13:45",
"14:00",
"14:15",
"14:30",
"14:45",
"15:00",
"15:15",
"15:30",
"15:45",
"16:00",
"16:15",
"16:30",
"16:45",
"17:00",
"17:15",
"17:30",
"17:45",
"18:00",
"18:15",
"18:30",
"18:45",
"19:00",
"19:15",
"19:30",
"19:45",
"20:00",
"20:15",
"20:30",
"20:45",
"21:00",
"21:15",
"21:30",
"21:45",
"22:00",
"22:15",
"22:30",
"22:45",
"23:00",
"23:15",
"23:30",
"23:45",
"00:00",
"00:15",
"00:30",
"00:45",
"01:00",
"01:15",
"01:30",
"01:45",
"02:00",
"02:15",
"02:30",
"02:45",
"03:00",
"03:15",
"03:30",
"03:45",
"04:00",
"04:15",
"04:30",
"04:45",
"05:00",
"05:15",
"05:30",
"05:45",
"06:00",
"06:15",
"06:30",
"06:45",
"07:00",
"07:15",
"07:30",
"07:45",
"09:15",
"09:30",
"09:45",
"10:00",
"10:15",
"10:30",
"10:45",
"11:00",
"11:15",
"11:30",
"11:45",
"12:00",
"12:15",
"12:30",
"12:45",
"13:00",
"13:15",
"13:30",
"13:45",
"14:00",
"14:15",
"14:30",
"14:45",
"15:00",
"15:15",
"15:30",
"15:45",
"16:00",
"16:15",
"16:30",
"16:45",
"17:00",
"17:15",
"17:30",
"17:45",
"09:30",
"09:45",
"10:00",
"10:15",
"10:30",
"10:45",
"11:00",
"11:15",
"11:30",
"11:45",
"12:00",
"12:15",
"12:30",
"12:45",
"13:00",
"13:15",
"13:30",
"13:45",
"14:00",
"14:15",
"14:30",
"14:45",
"15:00",
"15:15",
"15:30",
"15:45",
"16:00",
"16:15",
"16:30",
"16:45",
"17:00",
"17:15",
"17:30",
"17:45",
"18:00",
"18:15",
"18:30",
"18:45",
"19:00",
"19:15",
"19:30",
"19:45",
"20:00",
"20:15",
"20:30",
"20:45",
"21:00",
"21:15",
"21:30",
"21:45",
"22:00",
"22:15",
"22:30",
"22:45",
"23:00",
"23:15",
"23:30",
"23:45",
"00:00",
"00:15",
"00:30",
"00:45",
"01:00",
"01:15",
"01:30",
"01:45",
"02:00",
"02:15",
"02:30",
"02:45",
"03:00",
"03:15",
"03:30",
"03:45",
"04:00",
"04:15",
"04:30",
"04:45",
"05:00",
"05:15",
"05:30",
"05:45",
"06:00",
"06:15",
"06:30",
"06:45",
"07:00",
"07:15",
"07:30",
"07:45",
"09:15",
"09:30",
"09:45",
"10:00",
"10:15",
"10:30",
"10:45",
"11:00",
"11:15",
"11:30",
"11:45",
"12:00",
"12:15",
"12:30",
"12:45",
"13:00",
"13:15",
"13:30",
"13:45",
"14:00",
"14:15",
"14:30",
"14:45",
"15:00",
"15:15",
"15:30",
"15:45",
"16:00",
"16:15",
"16:30",
"16:45",
"17:00",
"17:15",
"17:30",
"17:45",
"09:30",
"09:45",
"10:00",
"10:15",
"10:30",
"10:45",
"11:00",
"11:15",
"11:30",
"11:45",
"12:00",
"12:15",
"12:30",
"12:45",
"13:00",
"13:15",
"13:30",
"13:45",
"14:00",
"14:15",
"14:30",
"14:45",
"15:00",
"15:15",
"15:30",
"15:45",
"16:00",
"16:15",
"16:30",
"16:45",
"17:00",
"17:15",
"17:30",
"17:45",
"18:00",
"18:15",
"18:30",
"18:45",
"19:00",
"19:15",
"19:30",
"19:45",
"20:00",
"20:15",
"20:30",
"20:45",
"21:00",
"21:15",
"21:30",
"21:45",
"22:00",
"22:15",
"22:30",
"22:45",
"23:00",
"23:15",
"23:30",
"23:45",
"00:00",
"00:15",
"00:30",
"00:45",
"01:00",
"01:15",
"01:30",
"01:45",
"02:00",
"02:15",
"02:30",
"02:45",
"03:00",
"03:15",
"03:30",
"03:45",
"04:00",
"04:15",
"04:30",
"04:45",
"05:00",
"05:15",
"05:30",
"05:45",
"06:00",
"06:15",
"06:30",
"06:45",
"07:00",
"07:15",
"07:30",
"07:45",
"09:15",
"09:30",
"09:45",
"10:00",
"10:15",
"10:30",
"10:45",
"11:00",
"11:15",
"11:30",
"11:45",
"12:00",
"12:15",
"12:30",
"12:45",
"13:00",
"13:15",
"13:30",
"13:45",
"14:00",
"14:15",
"14:30",
"14:45",
"15:00",
"15:15",
"15:30",
"15:45",
"16:00",
"16:15",
"16:30",
"16:45",
"17:00",
"17:15",
"17:30",
"17:45",
"09:30",
"09:45",
"10:00",
"10:15",
"10:30",
"10:45",
"11:00",
"11:15",
"11:30",
"11:45",
"12:00",
"12:15",
"12:30",
"12:45",
"13:00",
"13:15",
"13:30",
"13:45",
"14:00",
"14:15",
"14:30",
"14:45",
"15:00",
"15:15",
"15:30",
"15:45",
"16:00",
"16:15",
"16:30",
"16:45",
"17:00",
"17:15",
"17:30",
"17:45",
"18:00",
"18:15",
]- Chartjs-Charts.js renders axes, but not the dataset
- Chartjs-Javascript and chart.js, how to add euro currency to y label
Source:stackexchange.com