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The pattern & placeholder properties
- Pattern is a form of input validation that allows you to control what the user enters
- Placeholder allows you to give the user an example of what they should enter
- <! Using a TEXTBOX>
- <label> Part Number
- <input pattern="[0-9]{3}[A-Z]{2}[0-9]{4}"
- name="part" placeholder="000XX0000">
- </label>