Hasindu's Diary

  CSS specificity hierarchy listed from highest to lowest priority: Inline Styles : These are styles applied directly to an element using the style attribute. Example: <div style="color: red;"> ID Selectors : These are styles applied using the ID of an element, which is unique within a page. Example: #header { color: blue; } Class Selectors, Attribute Selectors, and Pseudo-classes : These include styles applied using class names, attributes, and pseudo-classes. Examples: Class: .main { color: green; } Attribute: [type="text"] { color: yellow; } Pseudo-class: :hover { color: purple; } Element Selectors and Pseudo-elements : These are styles applied directly to HTML elements and pseudo-elements. Examples: Element: p { color: black; } Pseudo-element: ::after { content: ""; } Universal Selector and Inherited Styles : These styles have the lowest specificity and include the universal selector * and inherited styles from parent elements. Examples: Univer

1. Add Category Management Objective : Allow products to be categorized, providing a way to filter products by category. Steps : Create a new Category model and migration. Define the relationship between Category and Product models. Update your Product migration to include a foreign key to Category . Create a form and views for adding and managing categories. Update your product form to include a category selection. 2. Implement Search Functionality Objective : Allow users to search for products by name or description. Steps : Add a search form to your product index view. In your controller, modify the product query to filter based on search input. Ensure that search results are displayed correctly. 3. Add Filtering Options Objective : Enable users to filter products by various criteria such as category and price range. Steps : Add form inputs for filtering by category and price range to your product index view. Update the controller to handle these inputs and filter the product qu

  Creating an SRT (SubRip Subtitle) file for a video involves outlining the subtitles and timings for each segment of dialogue or text that appears in the video. Here’s a step-by-step guide on how to create an SRT file: Step-by-Step Guide to Create an SRT File: Prepare Your Transcript: Start by transcribing the dialogue or text that needs to be subtitled in your video. This transcript should match the spoken words and include any necessary timing cues. Format the Subtitles: Each subtitle entry in an SRT file typically follows a specific format: 1 00 : 00 : 00 , 000 --> 00 : 00 : 05 , 000 Your subtitle text goes here. 2 00 : 00 : 05 , 001 --> 00 : 00 : 10 , 000 Next subtitle text line. The number represents the sequence of subtitles. The timestamps indicate when each subtitle should appear and disappear in the format hours:minutes:seconds,milliseconds . Text lines are separated by a blank line. Set Timestamps: Determine the start and end times for each subtitle based on the

How you can use Firebase Cloud Functions to add server-side logic to a mobile application 1. User Authentication Triggers Cloud Functions can be used to execute code in response to user authentication events, such as user creation or deletion. Example: Send a Welcome Email on User Signup const functions = require ( 'firebase-functions' ); const admin = require ( 'firebase-admin' ); admin. initializeApp (); exports . sendWelcomeEmail = functions. auth . user (). onCreate ( ( user ) => { const email = user. email ; // The email of the user. const displayName = user. displayName ; // The display name of the user. // Implement your email sending logic here. console . log ( `Sending welcome email to ${email} ` ); }); 2. Database Triggers Cloud Functions can respond to changes in the Firebase Realtime Database or Firestore. Example: Update User Count on New User Addition const functions = require ( 'firebase-functions' ); const admin =

How to Deploy Mobile App in Cloud   Deploying a mobile app to the cloud involves several steps, including setting up a backend server, configuring databases, and hosting the app for users to download and install. Here's a general guide to help you deploy a mobile app in the cloud: Step 1: Choose a Cloud Provider Select a cloud provider that best fits your needs. Popular options include: Amazon Web Services (AWS) Google Cloud Platform (GCP) Microsoft Azure Firebase (for backend services) Step 2: Set Up Backend Services If your app requires a backend (for user authentication, data storage, etc.), you'll need to set up the necessary backend services. Here's how to do it with Firebase as an example: Create a Firebase Project : Go to the Firebase Console. Click on "Add project" and follow the setup instructions. Set Up Authentication : In the Firebase Console, go to "Authentication" and enable the desired sign-in methods (e.g., Email/Password, Google Sign-In)