How to Check if a Color is Valid in JavaScript As a web developer, you must have come across situations where you needed to validate a color value in JavaScript. To validate a color, you can use the RegExp object or CSS…
Showing Ingoing Node on Click Cytoscape.js As a blogger and a web developer, I have worked with Cytoscape.js to create dynamic and interactive network graphs. One of the essential features of any network graph is to be…
Can PostgreSQL Allow Users to Create Databases? Yes, PostgreSQL allows users to create databases. By default, only the superuser, usually the postgres user, can create new databases. However, you can grant the privilege…
Working Realm + React Navigator Example When it comes to building mobile apps that require local storage, Realm is a great database option for React Native developers. In addition, React Navigation is an excellent…
JQuery: Loop Through Each Child Element If you want to loop through each child element of a parent element using jQuery, you can use the .each() function. This function allows you to iterate over a jQuery object…
Random Order of Buttons on Refresh in Vanilla JS As a web developer, I have faced an issue where the order of buttons on a page is changing randomly on refresh. This occurs due to the asynchronous nature of JavaScript…
Get Element by ID in jQuery jQuery is a popular JavaScript library that simplifies HTML document traversing, event handling, and manipulation. It provides various methods to select, manipulate, and traverse HTML…
Removing Elements of One Array from Another in JavaScript Have you ever needed to remove all elements of one array from another array in JavaScript? This can be a common task when dealing with arrays that have…
Changing Directory in Node.js Node.js provides an fs module that allows you to work with the file system in a non-blocking way. One of the functions provided by this module is fs.readdir(), which allows you to read the…
How to Start PM2 Node Process with Flags If you are a developer who frequently works with Node.js and needs to manage multiple processes, PM2 is a great tool to help you monitor and control your applications. In this…
Returning the Sum of an Array If you have an array of numbers and you want to find the sum of all the numbers in the array, there are a couple of ways to accomplish this. One way is to use a for loop to iterate through…
What is jQuery empty() method? jQuery empty() method is used to remove all the child elements and text content from the selected element(s). The method does not remove the selected element(s) itself, only its content…
Split Text and Join in JS Splitting and joining strings is a common task in JavaScript. It can be helpful in manipulating data, formatting text, and so on. Luckily, JavaScript provides built-in methods to split and join…
JSON Won't Compile: "Expecting 'STRING', 'NUMBER', 'NULL', 'TRUE'" If you are encountering the error message "Expecting 'STRING', 'NUMBER', 'NULL', 'TRUE'" while trying to compile your JSON, it means that there is a…
How to Find the Last Word of a String in JavaScript If you're working with strings in JavaScript, you might need to find the last word of a string for various reasons. Here are a few ways you can achieve this: Method 1…
Understanding Composer Require Command Composer is a popular dependency management tool used in PHP projects. It allows developers to easily manage dependencies and libraries for their projects. One of the primary…
React Timer React Timer is a popular feature in React applications that allows users to count down or up to a specific time. This can be used for a variety of purposes, such as tracking the time remaining for an event…
Arrow Expression in JavaScript Arrow functions, also known as arrow expressions, were introduced in ECMAScript 6 (ES6) as a new syntax for defining functions in JavaScript. They provide a more concise way of writing…
If Statement in JS If statement in JavaScript is a conditional statement used to execute a block of code if a particular condition is true. The syntax for writing an if statement is: The condition in the if statement is…
Function data_map() The data_map() function creates a new array, newData, by mapping each element from the original array, data. Each element in the data array is itself an array of three elements. The first two…