Exercise: Changing a button

Using the HTML document provided, complete the definition of startFunction so that when the button is clicked, the font weight is changed to bold and the text becomes Done!.

Note:

Hints:

  • Use document.getElementById to extract the button object.

Solution to the exercise

Here is a possible solution to the exercise.

Note:

Hints:

  • undefined
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window.onload = startFunction;
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<!DOCTYPE html>
<html lang="en">
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