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Chart JS annotation issues

I am trying to load annotation the dynamic chart that I create after receiving data from the database and I have tried all possible options but somehow the chart loads but no the annotations.
chart.js version = v2.9.4
chart-plugin-annotation.min.js version = 0.5.7
Function in JS that runs when data is receiving from db:
function DrawChart(timeLabelList, unitsProducedList, goalList){
if(draw_the_chart != null) draw_the_chart.destroy();
Chart.defaults.global.defaultFontColor = 'white';
var ctx = document.getElementById('draw_the_chart').getContext("2d");
draw_the_chart = new Chart(ctx, {
type: 'line',
//plugins: [ChartAnnotation],
data: {
labels: timeLabelList,
datasets: [
{
label: 'Goal',
yAxisID: 'A',
data: goalList,
//backgroundColor: chartColumnColorBlueSolid,
borderColor: chartColumnColorGreenSolid,
borderWidth: 2,
pointStyle: 'star'
}]
},
options: {
annotation: {
annotations: [
{
id: "a-line-1",
type: "line",
mode: "vertical",
scaleID: "y-axis-0",
value: "1",
borderColor: "red",
borderWidth: 2
}
]
},
legend: {
position: 'bottom',
display: true,
},
elements: {
line: {
tension: 0
}
},
scales: {
xAxes: [{
stacked: true,
type: 'time',
time: {
unit: 'hour'
},
}],
yAxes: [{
stacked: false,
id: 'A',
type: 'linear',
position: 'right',
}]
},
}
});
}
I tried all possible ways to register and also different ways to used the plugin but had no luck plotting it. I even used latest CDN versions but had no luck.
Can anyone help with it.
Thanks!

chartjs display data in one bar line with 3 different data sets in 3 different colors

I currently display my data like this:
Click here
but I would like to display the data like this:
Click here
The idea is that at the bottom it would show the summary of all three colors numbers combined, but once you hover it would show how much each color has.
If all is one bar, if red is 7, blue is 3, the red but be a lot more in the bar.
This is the code for version 1, done with chart js
var ctx = document.getElementById("myChart").getContext("2d");
var data = {
labels: ["Chocolate", "Vanilla", "Strawberry"],
datasets: [
{
label: "Blue",
backgroundColor: "blue",
data: [3, 7, 4]
},
{
label: "Red",
backgroundColor: "red",
data: [4, 3, 5]
},
{
label: "Green",
backgroundColor: "green",
data: [7, 2, 6]
}
]
};
var myBarChart = new Chart(ctx, {
type: 'bar',
data: data,
options: {
barValueSpacing: 20,
scales: {
yAxes: [{
ticks: {
min: 0,
}
}]
}
}
});
const myChart = new Chart(
document.getElementById('myChart'),
config
);

your problem is the next, you are using a wrong config you must something like this:
<script src="https://cdn.jsdelivr.net/npm/chart.js#3.6.0/dist/chart.min.js"></script>
<canvas id="MyChart" width="400" height="200"></canvas>
<script>
new Chart(document.getElementById("MyChart"), {
type: 'bar',
data: {
labels: [2017],
datasets: [{
label: "Chocolate",
type: "bar",
stack: "Base",
backgroundColor: "#eece01",
data: [30],
}, {
label: "Vanilla",
type: "bar",
stack: "Base",
backgroundColor: "#87d84d",
data: [-15],
}, {
label: "Strawberry",
type: "bar",
stack: "Base",
backgroundColor: "#f8981f",
data: [20],
}, {
label: "candy",
type: "bar",
stack: "Base",
backgroundColor: "#00b300",
backgroundColorHover: "#3e95cd",
data: [-10]
}]
},
options: {
plugins: {
title: {
display: true,
text: 'Chart.js Bar Chart - Stacked'
},
},
responsive: true,
interaction: {
intersect: false,
},
scales: {
x: {
stacked: true,
},
y: {
stacked: true
}
}
}
});
</script>
Now you just need to fix the styles and sizes of the graphic

If someone finds this, the solution is this:
const config = {
type: 'bar',
data: data,
options: {
plugins: {
title: {
display: true,
text: 'Chart.js Bar Chart - Stacked'
},
},
responsive: true,
scales: {
x: {
stacked: true,
},
y: {
stacked: true
}
}
}
};

How to display grid lines (without showing label) between each ticks?

I'm using Chart.js 2 (React-chart-js 2) to display a line chart.
Does anyone have any reference to keeping the vertical gridline between each displayed label?
It seems like the vertical gridline only showing on each displayed label.

You can make use of the scriptable options for this, see example that hides every second label, you can adjust it to hide a bigger step if you want.
Example:
var options = {
type: 'line',
data: {
labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
datasets: [{
label: '# of Votes',
data: [12, 19, 3, 5, 2, 3],
borderWidth: 1
},
{
label: '# of Points',
data: [7, 11, 5, 8, 3, 7],
borderWidth: 1
}
]
},
options: {
scales: {
x: {
ticks: {
callback: function(val, index) {
return index % 2 === 0 ? this.getLabelForValue(val) : '';
}
}
}
}
}
}
var ctx = document.getElementById('chartJSContainer').getContext('2d');
new Chart(ctx, options);
<body>
<canvas id="chartJSContainer" width="600" height="400"></canvas>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/3.0.0/chart.js"></script>
</body>

You can try using following configuration
var config = {
type: 'line',
showDatapoints: true,
legend: { position: 'top' },
data: data,
options: {
responsive: true,
hoverMode: 'index',
stacked: false,
title: {
display: true,
text: 'Chart Title'
},
scales: {
yAxes: [{
type: 'linear', // only linear but allow scale type registration. This allows extensions to exist solely for log scale for instance
display: true,
position: 'left',
id: 'y-axis-1',
},
{
type: 'linear', // only linear but allow scale type registration. This allows extensions to exist solely for log scale for instance
display: true,
position: 'right',
id: 'y-axis-2',
// grid line settings
gridLines: {
drawOnChartArea: true, // only want the grid lines for one axis to show up
},
}],
}
}
};

Chart.js Stacked Bar - datasets visibility and ordering

I have a stacked chart with 3 datasets: Red, Green, Blue.
Here is the link to JSFiddle: https://jsfiddle.net/bwcfL58v/
Let's imagine that these are the layers, which overlay each others:
Red as bottom layer, then Green as middle layer and Blue as top layer.
Take a look at the third day: we don't see the red value, cause it behind the green value (red smaller than green here). So, the question is how to move Green to the bottom layer and Red higher. I need the biggest value to be always at the bottom and the smallest value - at the top, this will allow us to see all the datasets for each day.
All I need is to datasets always be visible and do not hide each others.
let ctx = document.getElementById("myChart");
let myChart = new Chart(ctx, {
type: "bar",
data: {
labels: ["Day 1", "Day 2", "Day 3"],
datasets: [
{
label: 'Blueberry',
data: [25, 30, 40],
backgroundColor: 'blue',
},
{
label: 'Greenberry',
data: [50, 60, 100],
backgroundColor: 'green',
},
{
label: 'Strawberry',
data: [100, 120, 50],
backgroundColor: 'red',
}
]
},
options: {
responsive: true,
maintainAspectRatio: false,
scales: {
xAxes: [{
stacked: true,
gridLines: {
drawOnChartArea: false
},
}],
yAxes: [{
stacked: false,
display: false,
gridLines: {
drawOnChartArea: false
},
ticks: {
beginAtZero: true,
},
}]
},
legend: {
display: false
}
}
});

chartjs - multi axis line chart - cannot read property 'min' of undefined

When running the below code without the scales and yAxisID values, it renders a 2 line chart with both lines on the same axis.
UPDATE: When only removing the yAxisID values from the code it runs as before without errors - although still with only a single y axis.
When adding these elements in order to get a split axis, it returns the js error cannot read property 'min' of undefined and the canvas is blank.
Not sure if his should make a difference, but data is a json object returned through an ajax request by way of a vue.js method.
Here is an example of how the data.sales variable looks in the browser console:
sales: (187) [0, 0, 43.2874, 10.276, ..., 23.834]
var ctx = document.getElementById("chart_canvas").getContext('2d')
var basic_line = new Chart(ctx, {
type: 'line',
data: {
labels: data.labels,
datasets: [{
label: 'Price',
yAxisID: 'B',
fill: false,
borderColor: ["#668cff"],
data: data.price
}, {
label: 'Sales',
yAxisID: 'A',
fill: false,
borderColor: ["grey"],
data: data.sales
}],
options: {
scales: {
yAxes: [{
id: 'A',
position: 'left',
type: 'linear'
}, {
id: 'B',
position: 'right',
type: 'linear'
}]
},
responsive: true,
maintainAspectRatio: false
}
}
})

The issue is merely occurring due to the fact that, you have placed the options object/property, inside the data property, while it should be outside.
Here is the revised version of your code :
var ctx = document.getElementById("chart_canvas").getContext('2d')
var basic_line = new Chart(ctx, {
type: 'line',
data: {
labels: data.labels,
datasets: [{
label: 'Price',
yAxisID: 'B',
fill: false,
borderColor: ["#668cff"],
data: data.price
}, {
label: 'Sales',
yAxisID: 'A',
fill: false,
borderColor: ["grey"],
data: data.sales
}]
},
options: {
scales: {
yAxes: [{
id: 'A',
position: 'left',
type: 'linear'
}, {
id: 'B',
position: 'right',
type: 'linear'
}]
},
responsive: true,
maintainAspectRatio: false
}
});