javascript - 单击按钮时调用函数

Question

Can someone show me what I am doing wrong here?

I am trying to execute a function when a button is clicked.

The HTML:

<button id="btn1">Press me!</button>
<input type="button" id="btn2" value="Press me!"/>​

The javascript:

var btn1 = document.getElementById('btn1'),
    btn2 = document.getElementById('btn2');


function do() {
    alert('Yay!');
}
btn1.onclick = do;
btn2.onclick = do;​

Here's a demo. I'm not sure why it's not working. It's probobly something way to obvious for me to notice. :)

Answer 1

Change the name of your function from do to something that is not a reserved keyword.

• http://jsfiddle.net/pFYUM/1/

Answer 2

do is a keyword. If you used a debugger you'd know that.

Answer 3

do is a keyword. Change variable name and it will work.