Change text on the page

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A common output pattern is to change existing text on the page. Try it. Enter a number and click the button.



Here is the important code:

<p>Double: <span id="double_out"></span></p>

Look at line 1. The <span> is where the output it going to go. It has an id so JavaScript code can refer to it. The <p> is the container of the entire output area.

Line 3 puts data into the <span>. Whatever value x has is shown.


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