Javascript Form ValidationText Box:Can't be left blank, only text or only numeric data to be entered. There can be an upper limit of data entered in a textbox.Radio button ( Period button ) :One of the several radio button to be selected before submitting the formCheckbox :User must check before submitting. One or more to be checked.Listbox ( dropdown box ) :One of the options has to be selected before submitting.TextArea :Can't be left blank or some minimu data to be entered. There can be a restriction on maximum number of text to be entered.
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