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In this tutorial, we'll create a  ResponsiveImg  component that uses the Next.js Image component for optimized  image  rendering.   Introduction The ResponsiveImg Component The ResponsiveImg component accepts properties for both mobile and desktop versions of the image. It uses the useEffect and useState hooks to determine the screen size and adjust the image properties accordingly. Here's the complete code for the ResponsiveImg component: /**  * ResponsiveImg component that renders an image which adapts to screen size.  * It uses the Next.js Image component for optimized image rendering.  *  * @component  * @param {ResponsiveImgProps} props - The properties for the ResponsiveImg component.  * @param {Object} props.mobile - The properties for the mobile version of the image.  * @param {string | StaticImport} props.mobile.src - The source of the mobile image.  * @param {number} props.mobile.width - The width of...

 In JavaScript, you can use try...finally to ensure that certain cleanup code runs regardless of whether an error occurs. This is useful for releasing resources like memory, files, or network connections. Example: Using try...finally for Cleanup Here's an example of how you might use try...finally to ensure that a file is closed after it has been read, regardless of whether an error occurs during the reading process: const fs = require ( 'fs' ); function readFile ( filePath ) {   let fileDescriptor ;   try {     fileDescriptor = fs . openSync ( filePath , 'r' );     const buffer = Buffer . alloc ( 1024 );     fs . readSync ( fileDescriptor , buffer , 0 , buffer . length , 0 );     console . log ( buffer . toString ());   }   catch ( error ) {     onsole . error ( 'Error reading file:' , error );   }   finally {     if ( fileDescriptor !== undefined ) {       fs...

If you want to send a username and password to the server side in nextJs and check if it is correct to continue the identification process. In this article I will explain how and explain why it is important to add salt to a salad 😁 First I will explain why hashing passwords with a salt is an effective defense against rainbow table attacks . Here's why: Rainbow Tables Explained : A rainbow table is a precomputed table for reversing cryptographic hash functions, primarily used for cracking password hashes. Suppose an attacker has a database of hashed passwords obtained from a compromised system. If these passwords were hashed without a salt, the attacker could use a rainbow table to look up the hash values and find the corresponding plaintext passwords. Rainbow tables are feasible because they can be precomputed for all possible plaintext passwords up to a certain length and complexity. The Role of Salt : A salt is a random value that is added to the password before it is hashed. Th...

 Hi, Here is a code that has base response class and use it in an ASP.NET Web API controller to send a response with a cookie and security headers. This code creates a BaseResponse<T> class with a Status property and a Data property of type T. In the Post method of MyController, a new HttpResponseMessage is created with a status of OK and the content set to a serialized BaseResponse<string>. A cookie is added to the response headers, and then several security headers are added. The X-Content-Type-Options header is set to nosniff to prevent the browser from trying to interpret content with a MIME type that doesn't match the declared type. The X-Frame-Options header is set to SAMEORIGIN to prevent the page from being displayed in a frame or iframe. The Content-Security-Policy header is set to only allow content from the same origin In this code, I've assumed that you have a service IDatabaseService with a method CheckIfExists that checks if an ID exists in the databa...

Let's face it - there are some problems with React & Webpack. When I create a Webpack bundle - All the files (js and css) are merged. (remember files Name Must Start with Capital letter- js , css,..) It means that if I have some styles with the same name, the style will be applied on all the elements. Ex: In A component - there is an element like this: <Button className="mybutton" label="close" /> with style like this: .mybutton {color:red} In B component - there is element with the same class name <Button className="mybutton" label="open" /> So because I used the same style css class name - the Webpack bundle merged the css files of all the components, its means that we got red color to all components that use the same name. In the example component B got red color for the button. I call it a bug (not a feature 😀) In my project I created an app.js. In this file I import all the components. There, I noticed that as I mentione...