I was wondering if there is a way to display or append Null values in Primitive Dataset.
So far this is a short explanation in code of what my code actually does and how I try to Achieve the same thing, but with no success.
PHP Code (I use php to format some data I have in the correct format according to the Primitive dataset documentation):
<?php
//The Variable below is being appended with data.
$values .= "$value_I_want_to_append ,";
?>
// In the end the $values variable looks like this if printed:
0.456 ,0,424 ,0.223 etc...
Chart's script where I use this variable:
const data = {
datasets: [{
data: [ <? echo $values; ?> ],
}],
};
Question:
How can I append data that is of type equal to Null on the chart, without the chart breaking?
(By the term breaking, I mean the chart is not displaying values at all when I have atleast one null value).
Thanks in advance for your time and effort. The Library is Called Chart.js and the version of the library is 3.7.0.
You can define spanGaps: true on your dataset.
spanGaps: Iftrue, lines will be drawn between points with no ornulldata.For further details, consult the Line Styling section of the Chart.js documentation.
new Chart('chart', {
type: 'line',
data: {
labels: ['A', 'B', 'C', 'D', 'E', 'F', 'G'],
datasets: [{
data: [15, null, 13, 8, null, 9, 10],
backgroundColor: 'rgba(255, 0, 0, 0.5)',
borderColor: 'rgb(255, 0, 0)',
tension: 0.2,
spanGaps: true
}],
},
options: {
scales: {
y: {
beginAtZero: true
}
}
}
});<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/3.7.0/chart.min.js"></script>
<canvas id="chart"></canvas>