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How Does a Web Page Load and Execute: A Step-by-Step Breakdown?

Linda Hamilton
Linda HamiltonOriginal
2024-12-26 05:01:10869browse

How Does a Web Page Load and Execute: A Step-by-Step Breakdown?

Breakdown of Web Page Loading and Execution

Question: What is the sequence of loading and execution of a web page?

Answer:

1. HTML Parsing:

  • Browser downloads and parses the HTML document, creating the Document Object Model (DOM).

2. Resource Loading:

  • External resources are downloaded in parallel:

    • JavaScript (external scripts)
    • CSS (external style sheets)
    • Images

3. JavaScript Execution:

  • Inline JavaScript in