Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
387 views
in Technique[技术] by (71.8m points)

onclick - Javascript: How to make a Control send itself in a method

<a href="" id="someId" onclick="SomeMethod(self);"></a>

Where SomeMethod could have:

function SomeMethod(item)
{
  item.setAttribute('name', item.id);
}

Instead of:

function SomeMethod(itemId)
{
  var someItem;

  someItem = document.getElementById(itemId);
  someItem .setAttribute('name', someItem .id);

}

Silly example, but the idea is not to send in the id itself, but the actual control calling the method. I swear this can be done but have had no luck searching... partially because I'm not even sure what to search on.

I thought it was self, but self doesn't seem to be what I want when the script I have runs.

question from:https://stackoverflow.com/questions/619514/javascript-how-to-make-a-control-send-itself-in-a-method

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

Use the this Keyword.

<a href="" id="someId" onclick="SomeMethod(this);"></a>

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...