Manipulating HTML elements with Javascript

In this tutorial, Javascript is used to update the contents of elements on a page according to user inputs. A HTML page contains buttons for three random Korean characters, a copyright symbol and a square root sybmol and a text area for textual input. When a button is pressed, the character’s unicode is passed to the script, which converts it and appends it to the text area. The script also updates displays the contents of the text area on the same page.

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