onCLick() problem

Question

I have been reading to stay away from JavaScript for a lot of things, however I was messing around with it and it doesnt seem to work (unless I am blind and have missed something)

<SCRIPT LANGUAGE="text/javascript">
    function testResults() {
        System.out.println("Got into function");
}
</SCRIPT>

And this is my body:

<form action="" method="GET">
    <input type="button" value="Save" name="saveType" style="margin:10px;" onClick="testResults()"/>
</form>

From what I have seen of javascipt this should be fine... Any suggestions?

I think you have mistaken Java for JavaScript... as far as I know, `System.out.println()` exists in Java, but not in JavaScript. — rhino, May 13 '11 at 13:15
System.out.println()? java?, this is JAVASCRIPT!!!! 300 parody ;) anyways. try `alert('got into function')` instead — netbrain, May 13 '11 at 13:15
@user291652 - You should not bash languages going simply by "what you have read". There is a lot of ignorance and obsolete data on the web. Pick up a good book and learn the how's and why's of the js lang. — P.Brian.Mackey, May 13 '11 at 13:18
onClick="testResults():return false;" to stop it from submitting the form as the event bubbles. Also its a fix for an IE6 bug. — Alistair Laing, May 13 '11 at 13:19

score 8 · Answer 1 · edited May 13 '11 at 13:18

8

Use console.log instead of system.out.println...

Javascript is not Java!

edited May 13 '11 at 13:18

kapa

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answered May 13 '11 at 13:15

Kasturi

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`console.log` usually requires that the Browser has a debugger installed. – RoToRa May 13 '11 at 13:16
1

I hardly consider IE as a browser :) – Kasturi May 13 '11 at 13:30
2

@RoToRa if you are debugging JavaScript problems, then you should probably be using a browser that supports a debugger. Exception is when it's a browser specific issue. – Levi Morrison May 13 '11 at 14:07

score 2 · Answer 2 · answered May 13 '11 at 13:16

2

A few pointers:

it's type="text/javascript"
why capital letters?
System.out.println is Java

Stay away from JavaScript? Currently it's almost like the opposite, but as almost always it depends on what you have to do :)

answered May 13 '11 at 13:16

Alberto Zaccagni

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score 0 · Answer 3 · edited May 13 '11 at 13:20

0

Java => System.out.println or System.out.print
Javascript => console.log

:)

edited May 13 '11 at 13:20

kapa

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answered May 13 '11 at 13:17

eouti

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I would actually think that the Javascript analog to `System.out.print` would be `document.write`. – Brian Driscoll May 13 '11 at 13:22

score 0 · Answer 4 · answered May 13 '11 at 13:17

Javascript doesn't have a standard output like that. You have a few options:

If you have a debugging console running, you can use console.log("log a message")
You can output debug information to a HTML element: document.getElementById("myelement").innerHTML = "message here";

There are loads more options - I'd suggest learning Javascript properly. It's not that much like Java.

score 0 · Accepted Answer · answered May 13 '11 at 13:19

0

to get it work use this instead:

Look here - jsfiddle

<form action="" method="GET">
    <input type="button" value="Save" name="saveType" style="margin:10px;" onClick="testResults()"/>
</form>

<script type="text/javascript">
    function testResults() {
        alert("Got into function");
}
</script>

it is type="text/javascript and not language="text/language" also in javascript you have to use alert().

answered May 13 '11 at 13:19

Sarah West

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Thanks - and thanks for not just jumping to be patronising without understanding the circumstances for the coder.... – urema May 14 '11 at 08:50

onCLick() problem

5 Answers5