Here's a breakdown of the files and their purpose in the web calculator example:
app.py:
This file contains the Flask application code. It imports the Flask module and creates a Flask application instance. The @app.route('/') decorator defines a route for the root URL ("/") and associates it with the calculator() function. The calculator() function renders the index.html template. The @app.route('/function1') and @app.route('/function2') decorators define routes for the "/function1" and "/function2" URLs, respectively, and associate them with the function1() and function2() functions. The function1() and function2() functions are example functions that perform calculations and return the results as strings. Finally, the if name == 'main': block starts the Flask development server when the script is executed directly. index.html:
This file contains the HTML structure for the calculator. It includes a title, a heading, and two buttons with IDs "function1" and "function2". The CSS styles are linked using the tag. The JavaScript code is linked using the <script> tag. styles.css:
This file contains the CSS styles for the calculator. It includes styles for the body, heading, and buttons to give the calculator a centered layout and appropriate styling. script.js:
This file contains the JavaScript code that handles button clicks and performs AJAX requests. It listens for the "DOMContentLoaded" event, which ensures that the JavaScript code is executed after the HTML has been fully loaded. Inside the event listener, it retrieves the button elements with the IDs "function1" and "function2". The addEventListener() method is used to attach click event listeners to the buttons. When a button is clicked, an AJAX request is made to the corresponding route ("/function1" or "/function2") using the Fetch API. The response is processed, and an alert is displayed with the result.
GIT To push your Visual Studio Code (VSC) project to a GitHub repository, you can follow these steps:
Create a new repository on GitHub:
Go to the GitHub website and sign in to your account. Click on the "+" icon in the top-right corner and select "New repository". Give your repository a name, optionally add a description, choose if it should be public or private, and click "Create repository". Initialize Git in your VSC project:
Open a terminal in VSC by going to the View menu and selecting "Terminal". Navigate to your project directory using the cd command. Initialize Git in your project directory by running the command: shell Copy code git init Add your project files to the Git repository:
Add all the files in your project to the Git repository by running the command: shell Copy code git add . Commit your changes:
Create a commit to save the current state of your project by running the command: shell Copy code git commit -m "Initial commit" Replace "Initial commit" with an appropriate commit message that describes the changes you made. Connect your local repository to the GitHub repository:
On the GitHub repository page, copy the repository's remote URL. In the terminal, run the following command to add the remote repository: shell Copy code git remote add origin Replace with the URL you copied from the GitHub repository. Push your changes to the remote repository:
Run the following command to push your local changes to the remote repository: shell Copy code git push -u origin master This command pushes the changes to the master branch. If you're working with a different branch, replace master with the appropriate branch name. Enter your GitHub credentials:
When prompted, enter your GitHub username and password or personal access token to authenticate and push the changes. After completing these steps, your VSC project will be pushed to the GitHub repository. You can visit your repository on GitHub to verify that the files have been successfully uploaded.
To remember: The command git branch -M main is used to rename the default branch of a Git repository from the previous name (e.g., "master") to a new name (e.g., "main"). This command is typically used to align with more inclusive and neutral terminology.
Here's what each part of the command does:
git branch: This is the command to manage branches in Git. -M: This is an option that specifies the mode for renaming the branch. main: This is the new name for the branch. In this case, "main" is used as an example, but you can replace it with any desired branch name. By executing git branch -M main, you are effectively renaming the default branch of your Git repository to "main". This command ensures that the new branch name is updated in both your local repository and the remote repository.
The command git push -u origin main is used to push the local branch "main" to the remote repository named "origin" and set it as the upstream branch.
Here's what each part of the command does:
git push: This is the command to send your local commits to a remote repository. -u: This is an option that sets the upstream branch for the local branch being pushed. It tells Git to associate the local branch with the remote branch, enabling you to use git pull and git push without specifying the branch name in the future. origin: This is the remote repository's name. It is typically set as "origin" by default when you clone a repository. main: This is the branch you want to push to the remote repository. In this case, it is pushing the local branch "main" to the remote branch "main". By executing git push -u origin main, you are pushing the local branch "main" to the remote repository and setting it as the upstream branch. This allows you to use git pull and git push without specifying the branch name in subsequent commands.