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Javascript Articles
Page 224 of 534
How to unflatten an object with the paths for keys in JavaScript?
In JavaScript, unflattening an object means converting a flattened object (where nested properties are represented as dot-separated keys) back to its original nested structure. This is commonly needed when working with APIs, databases, or form data that store nested objects as flat key-value pairs. What is a Flattened Object? A flattened object has nested properties represented as string keys with dot notation: // Flattened object var flatObj = { "user.name": "John", "user.age": 30, "user.address.city": "New York", "user.address.zip": "10001" }; Basic Unflattening Algorithm ...
Read MoreWhat are Architecture Flux Components in JavaScript?
Flux is a JavaScript application architecture pattern developed by Facebook for building scalable web applications. Originally designed for React applications, Flux provides a unidirectional data flow pattern that makes application state more predictable and easier to debug. The Flux architecture consists of four main components that work together to manage data flow in a predictable way. Core Flux Components Flux architecture is built around four key components that ensure unidirectional data flow: Actions − Plain JavaScript objects that describe what happened in the application Dispatcher − Central ...
Read MoreHow to disable the centered scaling of Text using FabricJS?
In this tutorial, we are going to learn how to disable the centered scaling of Text using FabricJS. We can display text on canvas by adding an instance of fabric.Text. Not only does it allow us to move, scale and change the dimensions of the text but it also provides additional functionality like text alignment, text decoration, line height which can be obtained by the properties textAlign, underline and lineHeight respectively. When being scaled via controls, assigning a true value to the centeredScaling property, uses the center as the object's origin of transformation. Syntax new fabric.Text(text: String, ...
Read MoreHow to get the object scale factor of Text using FabricJS?
In this tutorial, we are going to learn how to get the object scale factor of Text using FabricJS. We can display text on canvas by adding an instance of fabric.Text. Not only does it allow us to move, scale and change the dimensions of the text but it also provides additional functionality like text alignment, text decoration, line height which can be obtained by the properties textAlign, underline and lineHeight respectively. We can also find the object scale factor by using the getObjectScaling method. Syntax getObjectScaling() This method returns an object containing the scaleX ...
Read MoreHow to get the opacity of Text object using FabricJS?
In this tutorial, we are going to learn how to get the opacity of Text using FabricJS. We can display text on canvas by adding an instance of fabric.Text. Not only does it allow us to move, scale and change the dimensions of the text but it also provides additional functionality like text alignment, text decoration, line height which can be obtained by the properties textAlign, underline and lineHeight respectively. We can also find the opacity of an object by using the getObjectOpacity method. Syntax getObjectOpacity() Example 1 Using the getObjectOpacity method Let's ...
Read MoreHow to get the scaled height of Text using FabricJS?
In this tutorial, we are going to learn how to get the scaled height of Text using FabricJS. We can display text on canvas by adding an instance of fabric.Text. Not only does it allow us to move, scale and change the dimensions of the text but it also provides additional functionality like text alignment, text decoration, line height which can be obtained by the properties textAlign, underline and lineHeight respectively. We can also find the object's scaled height by using the getScaledHeight method. Syntax getScaledHeight() Example 1: Using the getScaledHeight method Let's see ...
Read MoreHow to get the scaled width of Text using FabricJS
In this tutorial, we are going to learn how to get the scaled width of Text using FabricJS. We can display text on canvas by adding an instance of fabric.Text. Not only does it allow us to move, scale and change the dimensions of the text but it also provides additional functionality like text alignment, text decoration, line height which can be obtained by the properties textAlign, underline and lineHeight respectively. We can also find the object's scaled width by using the getScaledWidth method. Syntax getScaledWidth() Example 1: Using the getScaledWidth Method Let's see ...
Read MoreHow to get the style of current selection in Text using FabricJS?
In this tutorial, we are going to learn how to get the style of current selection of Text using FabricJS. We can display text on canvas by adding an instance of fabric.Text. Not only does it allow us to move, scale and change the dimensions of the text but it also provides additional functionality like text alignment, text decoration, line height which can be obtained by the properties textAlign, underline and lineHeight respectively. We can also find the style of current selection by using the getSelectionStyles method. Syntax getSelectionStyles(startIndexopt, endIndexopt, completeopt) Parameters ...
Read MoreHow to include Text object's default values in its serialization using FabricJS?
In this tutorial, we are going to learn how to include Text object's default values in its serialization using FabricJS. We can display text on canvas by adding an instance of fabric.Text. Not only does it allow us to move, scale and change the dimensions of the text but we can also add additional functionalities. Serialization is used in order to export canvas contents. In order to achieve this we use toObject() and toJSON() methods. The includeDefaultValues property allows us to include or omit the object's default values when being serialized. Syntax new fabric.Text(text: String, { includeDefaultValues: ...
Read MoreHow to make controlling corners of Text transparent using FabricJS?
In this tutorial, we are going to learn how to make the controlling corners of Text transparent using FabricJS. We can display text on canvas by adding an instance of fabric.Text. Not only does it allow us to move, scale and change the dimensions of the text but it also provides additional functionality like text alignment, text decoration, line height which can be obtained by the properties textAlign, underline and lineHeight respectively. The transparentCorners property allows us to make the controlling corners of Text object transparent. Syntax new fabric.Text(text: String, { transparentCorners: Boolean }: Object) ...
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