Js and jquery verify the single-dataset, check box, and drop-down box respectively.

Let's talk about js and jQuery single answer (radio), multi-choice box (checkbox), and select (1) respectively ). first of all, single commit (radio), radio and checkbox are the same as names, and there are multiple

Let's talk about js and jQuery single-choice (radio) Verification, multi-choice box (checkbox), and select)

(1 ). first of all, single-sector (radio), radio and checkbox are the same name value. Multiple of them cannot follow the common text box when obtaining the radio value. value method, but to determine which is selected.Js VerificationIs to use getElementsByName () to obtain the Array

The js Code is as follows:

Script function test () {var sex = document. getElementsByName ("sex"); var flag = 0; for (var I = 0; I
 
  
Male
  Female
  
 

UseJQuery VerificationIt's much simpler, so we can do less writing and more: