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Use of the Select Drop-down box in JavaScript summary _javascript tips

Source: Internet
Author: User
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This article summarizes the problems that are encountered in the development project.
Question 1: How do I select the value in the Select option?
First you will use a method onchange (); This method is mainly used for triggering, selection box content change time

Implementation code:

<!doctype html>

Question 2: but in the development, we generally choose the content is only to display, and the real thing is to do with the background of interactive data transmission, at this time, we in order to minimize the HTTP data transmission, so the general will pass ID as data transmission signs, how to do?
in development, option is typically created dynamically, and then we just need to create a custom attribute for you dynamically. So how do I get a custom attribute?

<!doctype html>

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Related Keywords:
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