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Prevent form submission on Enter key press
...s function doesn't do any error checking and most likely will only work in IE. To do this right you need a more robust solution, but you will get the general idea.
function runScript(e) {
//See notes about 'which' and 'key'
if (e.keyCode == 13) {
var tb = document.getElementById("sc...
How to hide a in a menu with CSS?
...ment two methods for hiding. display: none works for FF, but not Chrome or IE. So the second method is wrapping the <option> in a <span> with display: none. FF won't do it (technically invalid HTML, per the spec) but Chrome and IE will and it will hide the option.
EDIT: Oh yeah, I alrea...
jQuery get input value after keypress
...n: Just because jQuery 2 is out, doesn't mean people don't need to support IE8 and lower. And I don't see anything in the docs that suggests actual support for the input event type.
– cookie monster
Aug 14 '14 at 22:21
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How to display all methods of an object?
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You can use Object.getOwnPropertyNames() to get all properties that belong to an object, whether enumerable or not. For example:
console.log(Object.getOwnPropertyNames(Math));
//-> ["E", "LN10", "LN2", "LOG2E", "LOG10E", "PI", ...etc ]
You can then use filter() to obtain only ...
How does inline Javascript (in HTML) work?
...e got it nearly correct, but you haven't accounted for the this value supplied to the inline code.
<a href="#" onclick="alert(this)">Click Me</a>
is actually closer to:
<a href="#" id="click_me">Click Me</a>
<script type="text/javascript">
document.getElementById('c...
How to detect online/offline event cross-browser?
...n you go "offline" automatically - meaning that "online" events and properties will fire automatically when you unplug your network cable.
Mozilla Firefox (before version 41), Opera, and IE take a different approach, and consider you "online" unless you explicitly pick "Offline Mode" in the browser ...
How do I capture response of form.submit
...orm; i.e. it is not the submit destination. From the docs: target - Identifies the element(s) in the page to be updated with the server response.
– JCotton
Aug 10 '11 at 23:41
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Is there a CSS selector by class prefix?
... to apply a CSS rule to any element whose one of the classes matches specified prefix.
4 Answers
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What is the best JavaScript code to create an img element
...cking URL (such as Omniture) and needs to be simple and robust and work in IE 6 =< only. Here is the code I have:
11 Answe...
Javascript: Setting location.href versus location
... you will do better to use the .href version.
Objects have default properties which, if nothing else is specified, they are assumed. In the case of the location object, it has a property called .href. And by not specifying ANY property during the assignment, it will assume "href" by default.
Thi...