In asynchronous JavaScript, there are two ways to schedule tasks – microtask queue and callback queue. Both queues are handled differently by the JavaScript engine.Microtask QueueA Microtask queue is a queue of tasks that are executed after the current task. The microtask queue is handled by the JavaScript engine before it moves on to the next task in the callback queue.ExampleHere’s an example of how microtask queue works −    Examples               console.log('start');         setTimeout(function() {          console.log('setTimeout');       }, 0);   ... Read More

In JavaScript, there are various ways to remove elements from an array until the passed function returns true. In this tutorial, we are going to look at 3 methods in detail.Using Array.prototype.filter()The Array.prototype.filter() method can be used to remove elements from an array until the passed function returns true. Please refer to the Array filter() method for more details.Example 1The following code shows how to use this method −    Examples                   var arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];       function ... Read More

In this tutorial, we are going to set the border scale factor of Rectangle using FabricJS. Rectangle is one of the various shapes provided by FabricJS. In order to create a rectangle, we will have to create an instance of fabric.Rect class and add it to the canvas.We can use the borderScaleFactor property which specifies the scale factor of the object's controlling borders.Syntaxnew fabric.Rect({ borderScaleFactor: Number }: Object)ParametersOptions (optional) − This parameter is an Object which provides additional customizations to our rectangle. Using this parameter, properties such as colour, cursor, stroke width and a lot of other properties can be ... Read More

In this tutorial, we are going to learn how to lock the rotation of a Rectangle using FabricJS. Just as we can specify the position, colour, opacity and dimension of a rectangle object in the canvas, we can also specify whether we want it to rotate or not. This can be done by using the lockRotation property.Syntaxnew fabric.Rect({ lockRotation : Boolean }: Object)ParametersOptions (optional) − This parameter is an Object which provides additional customizations to our rectangle. Using this parameter, properties such as colour, cursor, stroke width, and a lot of other properties can be changed related to the object ... Read More

In this tutorial, we are going to learn how to lock the horizontal skewing of a Rectangle using FabricJS. Just as we can specify the position, colour, opacity and dimension of a rectangle object in the canvas, we can also specify whether we want to stop skewing an object horizontally. This can be done by using the lockSkewingX property.Syntaxnew fabric.Rect({ lockSkewingX : Boolean }: Object)ParametersOptions (optional) − This parameter is an Object which provides additional customizations to our rectangle. Using this parameter, properties such as colour, cursor, stroke width, and a lot of other properties can be changed related to ... Read More

In this tutorial, we are going to learn how to lock the horizontal scaling of a Rectangle using FabricJS. Just as we can specify the position, colour, opacity and dimension of a rectangle object in the canvas, we can also specify whether we want to stop scaling an object horizontally. This can be done by using the lockScalingX property.Syntaxnew fabric.Rect({ lockScalingX : Boolean }: Object)ParametersOptions (optional) − This parameter is an Object which provides additional customizations to our rectangle. Using this parameter, properties such as colour, cursor, stroke width, and a lot of other properties can be changed related to ... Read More

In this tutorial, we are going to learn how to lock the horizontal movement of a Rectangle using FabricJS. Just as we can specify the position, colour, opacity and dimension of a rectangle object in the canvas, we can also specify whether we want it to move only in the Y-axis. This can be done by using the lockMovementX property.Syntaxnew fabric.Rect({ lockMovementX: Boolean }: Object)ParametersOptions (optional) − This parameter is an Object which provides additional customizations to our rectangle. Using this parameter, properties such as colour, cursor, stroke width, and a lot of other properties can be changed related to ... Read More

In this tutorial, we are going to learn how to lock the flipping during scaling of a Rectangle using FabricJS. Just as we can specify the position, colour, opacity and dimension of a rectangle object in the canvas, we can also specify whether we want to stop flipping an object during scaling. This can be done by using the lockScalingFlip property.Syntaxnew fabric.Rect({ lockScalingFlip : Boolean }: Object)ParametersOptions (optional) − This parameter is an Object which provides additional customizations to our rectangle. Using this parameter, properties such as colour, cursor, stroke width, and a lot of other properties can be changed ... Read More

In this tutorial, we are going to learn how to hide the controlling corners of a Rectangle using FabricJS. Rectangle is one of the various shapes provided by FabricJS. In order to create a rectangle, we will have to create an instance of fabric.Rect class and add it to the canvas. The controlling corners of an object allow us to increase or decrease its scale, stretch or change its position.We can customize our controlling corners in many ways such as adding a specific colour to it, changing its size, etc. We can also hide them using the hasControls property.Syntaxnew fabric.Rect({ ... Read More

In this tutorial, we are going to learn how to hide the controlling borders of a Rectangle using FabricJS. Rectangle is one of the various shapes provided by FabricJS. In order to create a rectangle, we will have to create an instance of fabric.Rect class and add it to the canvas.We can customize our controlling borders in many ways such as adding a specific colour to it, a dash pattern, etc. However, we can also eliminate the borders completely by using the hasBorders property.Syntaxnew fabric.Rect({ hasBorders: Boolean }: Object)ParametersOptions (optional) − This parameter is an Object which provides additional customizations ... Read More