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In JavaScript, a deep merge of two objects means creating a new object by combining properties recursively, and adding nested objects. Unlike in a simple merge, it ensures that no properties are lost during the merge, which replaces the top-level properties. In this article, we will look at several ways of performing a deep merge of two objects, with code and explanations. Approaches to Deep Merge Manual Recursive Function Using Lodash's merge Method Using the Spread Operator with Recursion Using Object.assign with ... Read More
Introduction Traditionally, wrapping up any content on a webpage such as texts relies on rectangular boundaries. Of course, it’s functional but sometimes it feels rigid as developers are cornered with a limited option and there is little to no room for flexibility. But with CSS shapes, designers and developers can break free from these constraints creating layouts that are visually appealing and dynamic. What are CSS Shapes CSS Shapes are unique CSS features that allow text to flow around images seamlessly and around custom shapes such as circles and polygons, enabling designs that were previously difficult to achieve with CSS ... Read More
Running cmd.exe with parameters from JavaScript typically involves using Node.js because standard JavaScript running in the browser does not have access to the system's command line for security reasons. With Node.js, you can use the child_process module to execute cmd.exe or any command with parameters. Approaches to Run cmd.exe with Parameters Using Node.js to Run cmd.exe with Parameters Passing Parameters Dynamically Using Spawn for Advanced Scenarios Using Node.js to Run cmd.exe with Parameters cmd.exe /c: Runs the command specified ... Read More
Base64 encoding is widely used as an ASCII string to represent binary data. However, converting Base64 strings to JSON is a common data exchange specification. This is because JSON is a human-readable format and is easily converted into JavaScript. In this article, we will explore methods to convert Base64 string to JSON string by giving examples and output for each. What is Base64? Base64 is a type of encoding scheme that represents binary data in an ASCII string. It generally gets used to encode an image, file, or other non-textual data to transfer safely across a text-based protocol like ... Read More
Node.js provides powerful tools for working with files, including reading and writing JSON files. JSON (JavaScript Object Notation) is widely used for storing and exchanging data in applications. This article walks you through reading and writing JSON files in Node.js with examples. Approaches to Read JSON file Using fs.readFileSync (Synchronous) Using fs.readFile (Asynchronous) JSON File data.json { "name": "PankajBind", "age": 21, "skills": ["JavaScript", "Node.js", "React"] } Using fs.readFileSync (Synchronous) The fs module in Node.js provides methods to interact with the file ... Read More
JavaScript has a class mechanism, primarily a blueprint for defining objects, including their properties and methods. Data must always be serialized to either store it, transmit it through a network or be used as part of the response to an API call. In this article, we will demonstrate how this can be done using JavaScript by providing examples and outputs as necessary. Approaches Convert JavaScript Class to JSON Using JSON.stringify() Method Adding a Custom toJSON() Method Using Object.assign() Method Using Custom Serializer ... Read More
When using an field, browsers automatically show up and down arrows to adjust the number. While these arrows can be helpful, they might not fit your design. Tailwind CSS doesn't have a built-in way to remove them, so you'll need to manually hide the arrows while still using Tailwind for the rest of your styling. Our goal is to remove the arrows without affecting the other Tailwind styles. Approaches We will cover two methods to remove the arrows from fields: Adding custom CSS for Webkit browsers Cross-browser solution (including ... Read More
In this article, we will learn to generate random number strings in Java. Random numbers are vital in programming for tasks like testing, cryptography, and simulations. A common need is generating random numeric strings, such as verification codes or randomized data. This article uses two Java methods Math.random() for simplicity and the Random class for flexibility and efficiency. Problem Statement Create a program to generate a random string consisting of numeric characters. The string's length should be customizable, and each character must be selected randomly. Input num[] = { '0', '1', '2', '3', '4', '5' }; Output 33241 A random ... Read More
In this article, we will learn about the getMaxBinaryLiteralLength() method of the DatabaseMetaData interface in JDBC. getMaxBinaryLiteralLength() method The getMaxBinaryLiteralLength() method of the DatabaseMetaData interface is used to find out the maximum number of characters (hex) that the underlying database allows for a binary literal. This method returns an integer value, representing the maximum length of a binary literal. If this value is 0 it indicates that there is no limit or, the limit is unknown. Steps to get the DatabaseMetaData object The following are the steps to get the DatabaseMetaData object − ... Read More
In this article, we will learn how to use the getDatabaseMinorVersion() method of the DatabaseMetaData interface in Java to retrieve the minor version of the underlying database. This method helps check the version details of the connected database. What is DatabaseMetaData?The DatabaseMetaData is an interface that provides methods to retrieve metadata about a database, such as the database product name, version, driver name, the total number of tables, views, and more. To get the DatabaseMetaData object, use the getMetaData() method of the Connection interface.Syntax: public DatabaseMetaData getMetaData() throws SQLException; ... Read More