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Fabric.js | Rect borderDashArray Property

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In this article, we are going to see how to set the dash pattern of the border of the canvas rectangle using FabricJS. The canvas rectangle means rectangle is movable and can be stretched according to requirement. Further, the rectangle can be customized when it comes to initial stroke color, height, width, fill color, or stroke width. Approach: To make it possible, we are going to use a JavaScript library called FabricJS. After importing the library, we will create a canvas block in the body tag which will contain the rectangle. After this, we will initialize instances of Canvas and Rectangle provided by FabricJS and set the dash pattern of the border of canvas rectangle using borderDashArray property and render the Rect on the Canvas as given in the below example. Syntax:
    width: number,
    height: number,
    borderDashArray: array
Parameters: This function accepts three parameters as mentioned above and described below:
  • width: It specifies the width of rectangle.
  • height: It specifies the height of rectangle.
  • borderDashArray: This parameter defines the dash pattern of border.
Example: This example uses FabricJS to set the dashed pattern of the border of a canvas-like rectangle as given below. Note that you have to click on the rectangle to see the border.
<!DOCTYPE html> 
        Fabric.js | Rect borderDashArray Property
    <!-- Adding the FabricJS library -->
    <script src
    <canvas id="canvas" width="600" height="200"
        style="border:1px solid #000000"
        // Initiate a Canvas instance 
        var canvas = new fabric.Canvas("canvas"); 
        // Initiate a Rect instance 
        var rectangle = new fabric.Rect({ 
            width: 200,
            height: 100,
            fill: '', 
            stroke: 'green',
            strokeWidth: 3,
            borderDashArray: [5] 
        // Render the Rect in canvas 


Last Updated : 20 May, 2020
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