使用jQuery / Ajax从数据库中获取数据以应用折扣

Question

I'm wanting to know the best way to make this form not use a button but return a valid discount code and then apply it to the price and show on page.

<input type="text" name="discount_code" value="" class="text" id="discount_code" title="Discount code">

This just posts to the same page.

I understand that onChange and Ajax would be used but not sure how to do this, so looking for some help/examples on this please.

Many Thanks.

Answer 1

You can use jquery blur function to call the ajax and communicating with database

For example

$('#discount_code').blur(function(){
//write your ajax call here
});