html - How to get value of textboxes, textareas, and radios in the same way in Javascript? -


I need a function / code that will return the value that the user is credited for the area whose name / ID it It will not make any difference whether the field is a text box, Textera, radio or selection. For example, the area may be: 

  & lt; Input type = 'radio' name = 'a_21' value = 'test' id = 'a_21_0' / & gt; & Lt; Input type = 'radio' name = 'a_21' value = 'test2' id = 'a_21_1' />

or 

  & lt; Textarea name = "a_21" rows = "30" cols = "6" & gt; & Lt; / Textarea & gt;

When I call: 

  getVal function ('a_21');

It should return the selected value.

How can I do this? Will: 

  document.myForm.field.value

There is also work for curriculum, dropdown and radio?

Using jQuery, you can: 

  $ ( '[Name = "a_21"]'). Val ();

This will give you the value of the field with a_21 name, so let's talk about what type of area.

Note: No quote is required, but I have found in the practice of adding checkbox arrays: 

   & Lt; Input type = "checkbox" name = "id []" value = "2" />

I think it is better than trying to know why it does not work.


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