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Validating date field

To me it's no different than "Give'm a fish, or teach'm to fish"... and to be able to replicate the functionality manually... If you visit a foreign country could you get by with "google translate'? Yes, for the most part, but you'll be lacking in idioms an phrases...Another example is; on all of my payment forms (where I can), I do a mod-10 check to see if a credit card number itself is "valid" before posting it to the payment gateway... I do think its important I get an understanding of how to validate from scratch, because if anything, I'll learn more about javascript programming.For example, a date field must have data in a date format.A salary field must have data in a numeric or currency format.

This article discusses how to validate information you get from users — that is, to make sure that users enter valid information in HTML forms in an ASP. What you'll learn: If you ask users to enter information in a page — for example, into a form — it's important to make sure that the values that they enter are valid.Note Important Validating user input is also important for security.When you restrict the values that users can enter in forms, you reduce the chance that someone can enter a value that can compromise the security of your site.In many cases, the values you need are some other data types, like integers or dates.Therefore, you also have to make sure that the values that users enter can be correctly converted to the appropriate data types.here is what i have so far I just need that javascript condition.Hopefully, I've understood what you were looking for, if not let me know I've missed the mark, and I'll try again to help you.I dont care much if they enter an invalid date like .As long as it is in that format so my php can read it and not produce an error.I want to validate a text field so that a user types exactly dd-mm-yyyy and if they try anything else then it returns false(error).Im using input type="date" so this isn't a problem on chrome or opera but it is on some browsers which display a text field instead.

425 comments

  1. Anyone know how I might validate a date field so that the user msut input the date in the format dd/mm/yyyy Thanks, macca

  2. Data validation rules. A text field such as a personal name. then this record must not have any associated salary payments after the date on which.

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