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Fabric.js Text borderOpacityWhenMoving Property

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  • Last Updated : 04 Sep, 2021
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In this article, we are going to see how to change the borderOpacityWhenMoving of the text canvas using Fabric.js. The canvas means the text written is movable, rotatable, resizable, and can be stretched. Further, the text itself cannot be edited like a textbox.

To make it possible, we are going to use a JavaScript library called Fabric.js. After importing the library using CDN, we will create a canvas block in the body tag that will contain our text. After this, we will initialize instances of Canvas and Text provided by Fabric.js and set the opacity of the border of the canvas text using borderOpacityWhenMoving property.


   borderOpacityWhenMoving: Number

Parameters: This property accepts a single parameter as mentioned above and described below:

  • borderOpacityWhenMoving: It specifies the opacity of the border while moving, This parameter takes value ranging from 0 to 1.

Below is the example that illustrates the use of borderOpacityWhenMoving property in Fabric.js:



<!DOCTYPE html>
<!-- Loading the FabricJS library -->
  <script src=
  <div style="text-align: center;
              width: 400px;">
    <h1 style="color: green;">
      Fabric.js | Text borderOpacityWhenMoving Property
  <div style="text-align: center;">
    <canvas id="canvas"
            width="400" height="200"
      style="border:1px solid green;">
    // Create a new instance of Canvas
    var canvas = new fabric.Canvas("canvas");
    // Create a new Text instance
    var geek = new fabric.Text('GeeksforGeeks', {
        borderOpacityWhenMoving: 0.2
    // Render the text on Canvas


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