CURRENCY CONVERTER

Proyect Description:

Converter from euros to dollars, yen and won.

We use:

• Input to write euro.
• Button to convert.
• Input to show the equivalent amount in dollar, yen or won.

We check:

• Event in button with JS code.
• Input box mustn't be empty when user click on "convert" button.
• Amount on input must be greater than or equal to 0.
• Input text must be possible to convert to a number.
• A currency must be selected.