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In this article, we will learn how to programmatically navigate using React Router. Programmatic navigation enables changing the URL of an application without reloading the page. We can use several approaches to programmatically navigate in a React application using React Router. Approaches to navigate using React Router To programmatically navigate a React application, we can use several methods based on the version of React Router. In React Router v6, the useNavigate hook is introduced, which is recommended for programmatic navigation. By calling the navigate function returned from useNavigate, we can navigate to other routes. In React Router v5, the ... Read More
The final keyword in Java may be employed to define a constant value as well as prevent a variable, method, or class from being changed or overridden. On the other side, immutability describes an object's characteristic of keeping a constant state across the course of its existence. The values of an object don't change after it is formed. Variables, methods, and classes are constrained by the "final" keyword, but immutability goes a step further by guaranteeing that the object's whole state is preserved. Let us learn the key differences between final vs immutability in this article. Final in Java ... Read More
Redirecting is one of the vital features in frontend applications like React apps. Moving from one page to another is known as navigation. In React, navigation is important for maintaining a Single Page Application for a better user experience. react-router-dom is a npm package which enables dynamic routing in react application. In this article, we are going to learn how we can redirect from one page to another in ReactJS. Using React Router Dom Navigating to another page can be done efficiently with the help of react-router-dom. It is an npm package responsible for client-side navigation. Using React ... Read More
Passing data from one component to another is an essential part of building complex React applications. React props and states are fundamental concepts in React. Props stand for properties, which are used for passing data from one component to another, while State is used to manage data within a component. Prerequisites ReactJS Props ReactJS State Passing Data from Child Component to Parent You can easily pass data from a parent component to a child component with the help of props. Passing data from a child component to a ... Read More
To create an Integer object in Java is quite easy. Let us learn about the following two ways for this purpose. Before moving to the coding section, let's briefly discuss the Integer class. The Integer class is a wrapper class in Java, which can be used to encapsulate a primitive int value in an object. Using an Integer Constructor You can create an Integer object using the Integer constructor by passing a primitive int value. In Java, a constructor is a special method whose name is exactly the same as the class name. Example The following example creates an Integer ... Read More
By using pymongo library, we can insert a Python object into MongoDB, which is a widely used MongoDB driver for Python. To insert a Python object represented as a dictionary, we have to establish the setup for a MongoDB client and connect to a database and collection. Before starting, ensure you have installed Python 3 (along with PIP) and MongoDB. The following are the steps for inserting a Python object in MongoDB. Install PyMongo ... Read More
In Python programming, some basic sequence type classes are, Lists , Strings , Tuples, Range, etc, these data structures hold an ordered collection of items. They allow us to access their elements through indexing and iteration, there are additional sequence-type objects such as Byte sequences. Sequence Types In Python Sequence types in Python are categorized into two types they are mutable and immutable sequences. Mutable Sequence Types These Sequences can be changed after their creation, and also we can modify elements, adding new elements and removing existing ones. Lists: A list is a mutable, ordered ... Read More
In C programming language, several directives control the selective compilation of different parts of the program code. Conditional Compilation is a set of preprocessing directives that allows us to exclude and include parts of a program based on specified conditions. Each directive in the compilation is processed across different platforms, including debug and release versions. They are as follows − #if #else #elif #endif The "#if" Directory The #if is a directive preprocessor that evaluates the expression or condition. If the condition ... Read More
The area chart accepts a series of data points (x, y) as input values, connects them using a line, and maps the area between the obtained line and the axis. In JavaFX, you can create an area chart by instantiating the javafx.scene.chart.AreaChart class. While instantiating this class you must pass the two objects of the Axis class representing the x and y axis (as parameters of the constructor). Since the Axis class is abstract you need to pass objects of its concrete subclasses, NumberAxis (for numerical values) or, CategoryAxis (String values). Area Chart with Multiple Series Follow the steps given ... Read More
When we work with databases, we often need to search for the name of a Person whose name starts with a specific Letter. We can also find the names of persons whose name starts with a specific letter using SQL. This is possible by using the 'LIKE' operator in SQL, it allows us to do pattern matching on a text. Prerequisites: The following are the prerequisites to understand this tutorial - Basic SQL syntax understanding. A database management tool like MySQL, Oracle SQL or SQLite. What is 'LIKE' Operator? The ... Read More