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All about Html

Index 1.HTML Basics 2.Headings 3.Formating tags, 4.<!doctype html > and html comments 5.Quatation and Citation 6.Links and Images 7.HTML Lists : ul , ol , dl 8.HTML Tables 9.HTML Form 10.HTML Form Input Types 11.HTML Elements 12.HTML Sementics Elementes HTML Basics - <html>, <head>,<title>,<body> : HTML stands for Hyper Text Markup Language All HTML documents must start with a document type declaration: <!DOCTYPE html> . The HTML document itself begins with <html> and ends with </html> . The visible part of the HTML document is between <body> and </body> . <htm

Android Studio error 100% solution

Your Android App Bundle is signed with the wrong key. Ensure that your app bundle is signed with the correct signing key and try again Error number one: You need to use a different package name because 'com. example' is restricted. Error number two : Your Android App Bundle is signed with the wrong key. Ensure that your App Bundle is signed with the correct signing key and try again. Your app bundle is expected to be signed with the certificate with fingerprint: SHA1: AF:B7:23:F7:EE:DD:D3:82:5A:CF:F8:C0:57:E2:4D:F1:A0:AD:B3:C4 but the certificate used to sign the app bundle that you uploaded has a fingerprint: SHA1: 4E:E4:20:0A:51:67:F0:08:13:9D:AC:FB:94:41:C8:A1:18:6C:A7:0B Solution : The error message is telling it all. You need to use a package name of your own. The package name is the identity of the application. ie. when you create an Android Studio Project you have to simply make chan

How to Install Node.js, MongoDB, and Build an API Using Express.js and Mongoose

How to Install Node.js, MongoDB, and Build an API Using Express.js and Mongoose If you're looking to develop a powerful backend for your web application, you'll need to set up a robust environment that includes Node.js, MongoDB, and Express.js. In this guide, we'll walk you through the step-by-step process of installing these tools and creating a basic API using Express.js and Mongoose, which is a popular MongoDB ODM (Object-Document Mapping) library. Let's dive in! Step 1: Setting Up the Environment Install Node.js and MongoDB : Begin by installing Node.js and MongoDB on your system. Node.js will allow you to run JavaScript on the server, while MongoDB will provide the database backend for your application. Open a Blank Folder in VS Code : Create a new, empty folder to organize your project files. Open this folder in Visual Studio Code (VS Code). Open the Terminal : From within VS Code, open the terminal. This is where you'll enter commands to interact with your pr

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