47. Why usually not necessary to include testing for the number : 1321009.
47. Why is is usually not necessary to include testing for the number of characters in user input in custom validation functions??
48. What does a function to validate required fields generally need to do??
49. Describe the three behaviors that make up the placeholder effect in modern browsers, and that you need to ?replicate with JavaScript for older browsers.
50. If you were designing a form with a question that asked users if they had ever visited a certain city, would you expect more accurate input using a text input box or a check box? Why??
47. Why usually not necessary to include testing for the number : 1321009
