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What exactly DOM (Document Object Model) is ?

DOM (Document Object Model) is a tree structure of the HTML document. When we built a webpage, the browser needs to go from this HTML document to a styled page that we see in the viewport, this process is called Critical Rendering Path. We can break this process into several small steps. Now we can group this process into two stages: First stage and Second stage. In first stage, the browser parses the document to determine what will ultimately to be rendered on the page,...

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