Flask is a popular web application framework for Python. It is used to build dynamic, interactive web applications. One of the key features of Flask is its template system, which allows developers to create HTML templates with embedded Python code.
In Flask, templates are typically used to render dynamic content, such as the results of database queries or user input. One of the powerful features of Flask templates is the “super” function, which allows developers to extend and override content from parent templates.
The “super” function is used to access and override blocks of content from a parent template. This is particularly useful for creating a consistent layout across multiple pages while still allowing each page to have its unique content.
Let’s take an example of a Character Counter App using Flask templates. The app has a base template that contains the main layout and styling, as well as a block for the main content. We can then create individual templates for each page of the app, which extend the base template and override the main content block.
“`html
Welcome to Character Counter App
{% endblock %}
“`
Now, let’s create a template for the homepage of the app, which extends the base template and overrides the main content block to display the app’s main functionality.
“`html
{% extends “base.html” %}
{% block main_content %}
Character Counter
{% endblock %}
“`
In this example, the “super” function is used to access the “main_content” block from the base template and override it with the form for counting characters. This allows us to maintain a consistent layout and styling across all pages of the app while still customizing the content for each page.
Overall, the “super” function in Flask templates is a powerful tool for creating dynamic and flexible web applications. It allows developers to create reusable templates with customizable content, making it easier to maintain and update web applications. With the “super” function, developers can create complex and interactive web applications using Flask’s template system.