What happens when you enter a URL
When a URL is entered, the browser fetches HTML, constructs the DOM and CSSOM, combines them into a render tree, and finally paints the page.
MAIN POINTS FROM TRANSCRIPT
- The browser fetches HTML content and constructs the Document Object Model (DOM).
- CSS is processed to create the CSS Object Model (CSSOM), dictating element styles.
- The DOM and CSSOM are combined into a render tree for layout calculations.
- The browser paints the screen, rendering elements based on calculated styles and layout.
TAKEAWAYS
- Understanding the DOM and CSSOM is crucial for web development.
- The render tree is essential for determining element layout and style.
- Reflow calculates the exact position and size of elements.
- The painting process finalizes the visual display of web pages.