How to use Options In JavaScript

Configure the canvas size by specifying options within the JavaScript code when initializing the chart.

Syntax:

options: {
    responsive: false,
    maintainAspectRatio: false,
    // Set your size options here
    aspectRatio: 2,
    // or
    width: 400,
    height: 200
}

Example: The below code will show how you can add the options to set the canvas size for every type of chart.

HTML

<!DOCTYPE html>
<html lang="en">
 
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, 
                   initial-scale=1.0">
    <script src=
"https://cdn.jsdelivr.net/npm/chart.js">
    </script>
    <title>
      JavaScript Options - Chart.js
    </title>
    <style>
        body {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            margin: 0;
        }
 
        /* Center the canvas */
        #chartContainer {
            text-align: center;
        }
    </style>
</head>
 
<body>
    <div id="chartContainer">
        <h1>w3wiki</h1>
        <!-- Canvas for JavaScript Options -->
        <canvas id="jsOptionsChart"
                width="400"
                height="200">
        </canvas>
        <p>
          Example of "Using JavaScript Options"
        </p>
    </div>
 
    <script>
        // Chart Data
        let data = {
            labels: 
['January', 'February', 'March', 'April', 'May'],
            datasets: [{
                label: 'Monthly Sales',
                data: [8, 21, 3, 15, 2],
                backgroundColor: 
                  'rgba(75, 109, 192, 0.2)',
                borderColor: 
                  'rgba(75, 192, 192, 1)',
                borderWidth: 1
            }]
        };
 
        // Chart Configuration with
        // JavaScript Options
        let config = {
            type: 'bar',
            data: data,
            options: {
                responsive: false,
                maintainAspectRatio: false,
                width: 400,
                height: 200
            }
        };
 
        // Create Chart
        let ctx = document.
        getElementById('jsOptionsChart').
        getContext('2d');
        let jsOptionsChart = new Chart(ctx, config);
    </script>
</body>
 
</html>

Output:

Output for Using Javascript

How to Set the Size of Canvas for Every Type of Chart ?

In this article, we will learn various approaches to setting the size of the canvas for different chart types using Chart.js. When you work with charting libraries like Chart.js, one common requirement is to customize the size of the canvas for different types of charts.

There are multiple ways to set the canvas size in Chart.js:

Table of Content

Using Inline Configuration
Using JavaScript Options
Using the CSS Styling

Chart.js CDN Link

Include the below chart.js CDN in your HTML document.

<script src="https://cdn.jsdelivr.net/npm/chart.js"></script>

Tags:

#Chart.js #Geeks Premier League 2023 #Geeks Premier League #JavaScript #Web Technologies

Using Inline Configuration

Using the CSS Styling

How to use Options In JavaScript

Syntax:

HTML

How to Set the Size of Canvas for Every Type of Chart ?

Chart.js CDN Link

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