Exercise: Clicking a table entry

Write JavaScript code so that when the table entry with the Z is clicked, the background colour becomes yellow. The CSS class yellow has already been defined for you.

Note:

Hints:

  • Use window.onload.

Solution to the exercise

Here is one possible solution.

Note:

Hints:

  • undefined
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<!DOCTYPE html>
<html lang="en">
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td {
    text-align: center;
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