When does javascript stop running on a page after a link is clicked?

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南方客
南方客 2021-02-20 02:41

I have a page which runs various javascript code, including calling setTimeout(). If a user clicks a link to navigate to another page, at what point does the javasc

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  •  醉话见心
    2021-02-20 03:07

    Here's the sequence of what happens:

    Step 1: You click on a link. Here the browser sends a request to the server and waits for the response. The current page's document object still exists.

    Step 2: Browser receives the response. The current page's document objects still exists.

    Step 3: The browser parses, creates and renders the response to a new document object.

    Step 3 is when the current page's JS will stop, UNLESS, you have targeted the response to an iframe, for example. If you do that, then the new document object will be rendered inside the iframe and the current page's document object remains intact and JS will still remain functional.

    Hope that answers your question!

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