Chapter 9: Data Validation Techniques
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Protecting Web Pages with JavaScript
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Testing if a string is a valid number using string methods
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Testing if a string is a valid email using string methods
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Testing if a string is a valid number using calculation methods
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Testing if a string is a valid date using calculation methods
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Testing if a string is a valid date using the Date object
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Reversing the order of names with Regular expressions
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Showing the URL of a link behind it via Regular Expressions
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Retrieving mandatory fields from a hidden field
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Retrieving mandatory fields from HTML indicators
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Retrieving mandatory fields by class name
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Sharing validation rules client and server side
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Showing a list of error fields above the submit button
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Hiding the main form on validation
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Showing error messages at each erroneous form field
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Showing error messages instantly at each erroneous form field
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Suggesting the user possible solutions dynamically
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Helper functions
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