2013年11月5日 星期二

Homework 11-5-2013 (HW5)

Study the phone number example in JavaScript Regular Expressions Chapter. Enhance the program to achieve the following.
1. If the user gives an incorrect format of phone numbers, the input will be cleared.
2. The cursor will come back to the input text field after the input is cleared.

Due 11-12-2013

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