如何设置变量或存储下拉列表中的选定项目

Question

I am making a registration form which has some drop down selection options (made with bootstrap) how do I store which option was selected from my drop down and make use of that value? I want to select an option and have it stored so I can make use of it to store information in a database.

Answer 1

<select onchange="console.log(this.value)">
  <option value="A">A</option>
  <option value="B">B</option>
</select>

Whenever the option changes, this.value gets changed. this is nothing but a reference of the select component. You can use this to call your own function to fire HttpRequest.