I'm just beginning JavaScript, and I was wondering how to make different buttons do different things. So far, I can make one button do one thing, but how do I make a second button do a different thing? Here's the coding:
<html>
<head>
<script type="text/javascript">
function show_prompt()
{
var name=prompt("Your Name");
if (name!=null && name!="")
{
alert("Thanks for clicking " + name + "!");
window.top.location.replace("");
}
}
</script>
</head>
<body>
<ul>
<li>
<input type="button" onclick="show_prompt()" value="Button One" />
</ul>
</body>
</html>
I'm just beginning JavaScript, and I was wondering how to make different buttons do different things. So far, I can make one button do one thing, but how do I make a second button do a different thing? Here's the coding:
<html>
<head>
<script type="text/javascript">
function show_prompt()
{
var name=prompt("Your Name");
if (name!=null && name!="")
{
alert("Thanks for clicking " + name + "!");
window.top.location.replace("http://www.google.");
}
}
</script>
</head>
<body>
<ul>
<li>
<input type="button" onclick="show_prompt()" value="Button One" />
</ul>
</body>
</html>
4 Answers
Reset to default 1I will guess you meant like doing different things with different buttons but from the same function:
JavaScript:
function myFunction(str) {
if(str.length > 3){
alert("big");
}else{
alert("small");
}
}
HTML:
<input type="button" onclick="myFunction('test');" value="Button 1" />
<input type="button" onclick="myFunction('hi');" value="Button 2" />
In case my assumption is wrong, just create different functions and replace the button's onclick with their respective function
Define another function and bind the second button to it!
function alert_hi() {
alert("Hi!");
}
<input type="button" onclick="alert_hi()" value="Button Two" />
If that catches your interest I highly remend Eloquent Javascript.
Making the second button do something is basically identical to making the first do something. It'd just be two functions and two buttons. I think this is what you're asking about.
<html>
<head>
<script type="text/javascript">
function doSomething()
{
// Do something when button one is clicked
}
function doSomethingElse()
{
// Do something else when button two is clicked
}
</script>
</head>
<body>
<input type="button" onclick="doSomething()" value="Button One" />
<input type="button" onclick="doSomethingElse()" value="Button Two" />
</body>
</html>
If you're serious about learning.. you can read up about Event Registration models.
in the case of your example.
js
var btn1 = document.getElementById('btn1'),
btn2 = document.getElementById('btn2');
btn1.addEventListener('click', show_me, false); // i am not IE friendly
btn2.addEventListener('click', show_me, false); // you can replace show_me with any function you would like.
function show_me() {
alert(this.value + ' was clicked'); // this references the element which the click event was invoked on.
}
html
<input type="button" id="btn1" value="Button One" />
<input type="button" id="btn2" value="Button Two" />