practice

Unit 3 - Lesson 1 Practice

Regular Expressions

1. Write a function, isConsonant, to test if a character is a consonant (make sure to check for numbers too!).

2. Write a function, isCapitalized, to test the first character of a string is uppercase or not.

3. Write a JavaScript function, countVowels, to count the number of vowels in a given string.

4. Write a JavaScript function, isZIPCode, to check whether a given value is US zip code or not.

5. Write a JavaScript function, isHex, to check whether a given value is hexadecimal value or not.

6. Write a JavaScript function, isIPAddress, to check whether a given value is IP value or not.

7. Write a function, isEmailAddress, to check whether a given value is a valid e-mail addresses.