Best Chart.js Tools to Buy in October 2025

Rose Book of Bible Charts, Maps, and Time Lines



NELOMO 11.8” X 7.9” Toolbox Reference Card Toolbox Accessories Conversion Chart Card SAE Metric Ruler Standard Metric Conversion Charts Tap Drill Sizes Wrench Conversion Chart
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All-in-One Quilter's Reference Tool: Updated
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General Tools 715 Tap and Drill Reference Table
-
DOUBLE-SIDED TOOL: INCLUDES TAP DRILL CHART AND DECIMAL CONVERSIONS.
-
6-INCH RULER: ACCURATE MEASUREMENTS WITH 64THS GRADUATION.
-
ESSENTIAL FOR PROFESSIONALS: IDEAL FOR MACHINISTS AND DIY ENTHUSIASTS.



The Living Legacy of Trauma Flip Chart: A Psychoeducational In-Session Tool for Clients and Therapists



The CBT Flip Chart: An Evidence-Based Psychoeducational Tool for Anxiety, Depression, Stress, Insomnia, PTSD, and More



How to Read a Nautical Chart, 2nd Edition (Includes ALL of Chart #1): A Complete Guide to Using and Understanding Electronic and Paper Charts



Torque Chart Magnet – SAE & Metric Screw Size Chart for Bolts – Tool Poster with Thread Chaser Info – Wrench Interchange + Conversion Chart Magnet – 8.5" x 11" Mechanic Magnet for Toolbox or Garage
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- DURABLE & WATERPROOF: BUILT TO WITHSTAND TOUGH WORKSHOP CONDITIONS.


To expand the "y" scale of the data in chart.js, you can set the "max" property of the y-axis configuration object to a higher value than the maximum data value. This will stretch out the y-axis to accommodate the larger range of values. Additionally, you can also adjust the "stepSize" property to increase the spacing between the y-axis ticks, making the scale more readable. Finally, you can set the "beginAtZero" property to false to start the y-axis from a value other than zero, if necessary. Through these adjustments, you can effectively expand the y-scale of the data in your chart using chart.js.
How to customize the y-axis tick marks in chart.js?
To customize the y-axis tick marks in Chart.js, you can use the ticks
key in the configuration options for the y-axis.
Here's an example of how you can customize the y-axis tick marks:
var ctx = document.getElementById('myChart').getContext('2d');
var myChart = new Chart(ctx, { type: 'bar', data: { labels: ['January', 'February', 'March', 'April', 'May', 'June', 'July'], datasets: [{ label: 'Sales', data: [12, 19, 3, 5, 2, 3, 8], backgroundColor: 'rgba(255, 99, 132, 0.2)', borderColor: 'rgba(255, 99, 132, 1)', borderWidth: 1 }] }, options: { scales: { yAxes: [{ ticks: { beginAtZero: true, min: 0, max: 20, stepSize: 5 } }] } } });
In this example, we are customizing the y-axis tick marks to start at zero (beginAtZero: true
), have a minimum value of 0 (min: 0
), a maximum value of 20 (max: 20
), and a step size of 5 (stepSize: 5
).
You can further customize the tick marks by using other options available in the ticks
key, such as [callback](https://topminisite.com/blog/how-to-bind-pandas-dataframe-to-a-callback)
, minRotation
, maxRotation
, and more.Refer to the Chart.js documentation for more options and examples: https://www.chartjs.org/docs/latest/axes/styling.html#tick-configuration.
What is the default orientation of the y-axis labels in chart.js?
The default orientation of the y-axis labels in chart.js is vertical.
What is the default y-axis range in chart.js?
The default y-axis range in Chart.js is typically determined based on the data provided in the dataset. If there is no specific y-axis range provided, Chart.js will automatically calculate the range based on the data points, ensuring that all data points are visible in the chart.
How to format the y-axis values as currency in chart.js?
You can format the y-axis values as currency in Chart.js by using the callback
option in the ticks
property of the y-axis configuration. You can define a callback function that returns the formatted currency value and pass it to the callback
option.
Here is an example code snippet that demonstrates how to format the y-axis values as currency in Chart.js:
var ctx = document.getElementById('myChart').getContext('2d');
var myChart = new Chart(ctx, { type: 'bar', data: { labels: ['January', 'February', 'March', 'April', 'May'], datasets: [{ label: 'Sales', data: [1500, 2000, 1800, 2200, 2500], backgroundColor: 'rgba(54, 162, 235, 0.2)', borderColor: 'rgba(54, 162, 235, 1)', borderWidth: 1 }] }, options: { scales: { yAxes: [{ ticks: { beginAtZero: true, callback: function(value, index, values) { return '$' + value.toFixed(2); } } }] } } });
In this example, the callback
function is used to format the y-axis values as currency by prefixing the value with a dollar sign and rounding it to 2 decimal places.
You can customize the currency formatting in the callback
function to suit your requirements. By using the callback
option in the y-axis configuration, you can easily format the y-axis values as currency in Chart.js.