JQuery simple form verification, jquery Form Verification
JQuery simple form verification results:
As long as there is a form, basically there will be form verification. Next we will briefly introduce the simplest form verification with examples, and how to prevent the filled form content from being empty.
The code example is as follows:
<! DOCTYPE html>
The code above can verify whether the form is empty when submitting the form. If it is empty, a prompt box is displayed. The following describes how to achieve this effect:
1. Bind The submit button to the click event processing function, that is, when the submit button is clicked, the bound processing function will be executed.
II. in the event processing function, if ($ ("# username "). val () = "") can be used to determine whether the user name is null. If it is null, a prompt box is displayed, and a return false statement is followed, if ($ ("# pw "). the same is true for val () =.
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