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How can I get the corresponding table header (th) from a table cell (td)?
...$(function($) {
"use strict";
// Only part of the demo, the thFromTd call does the work
$(document).on('mouseover mouseout', 'td', function(event) {
var td = $(event.target).closest('td'),
th = thFromTd(td);
th.parent().find('.highlight').removeClass('highlight');
if (even...
Validation of radio button group using jQuery validation plugin
...
With newer releases of jquery (1.3+ I think), all you have to do is set one of the members of the radio set to be required and jquery will take care of the rest:
<input type="radio" name="myoptions" value="blue" class="required"> Blue<br />
<input type="r...
Why does ConcurrentHashMap prevent null keys and values?
...oncurrentHashMap himself (Doug Lea):
The main reason that nulls aren't allowed in ConcurrentMaps
(ConcurrentHashMaps, ConcurrentSkipListMaps) is that ambiguities that
may be just barely tolerable in non-concurrent maps can't be
accommodated. The main one is that if map.get(key) returns nul...
Why do we need a fieldset tag?
...abel for="colour_blue">Blue</label>
</fieldset>
This allows each radio button to be labeled while also providing a label for the group as a whole. This is especially important where assistive technology (such as a screen reader) is being used where the association of the contro...
What is mutex and semaphore in Java ? What is the main difference?
... has 10 flags, then your thread won't accept new connections
Mutex are usually used for guarding stuff. Suppose your 10 clients can access multiple parts of the system. Then you can protect a part of the system with a mutex so when 1 client is connected to that sub-system, no one else should have a...
Getting value of select (dropdown) before change
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@free4ride, to fix that I just call $(this).blur(); at the end of the change function
– chiliNUT
Jun 23 '16 at 15:37
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Git Remote: Error: fatal: protocol error: bad line length character: Unab
I set up a git server and want now to push initially my repo from the client.
I used git push origin master and get this error message:
...
Decompile .smali files on an APK [duplicate]
... @Aleadam Do you mean APK Manager or APKTool? I did not find an installation page anywhere for APK manager. However, APKTool "decompiles the .dex file into .smali and binary .xml to human readable xml" - like you said.
– IgorGanapolsky
Sep 11 '12 at 18:...
How to get visitor's location (i.e. country) using geolocation? [duplicate]
...egistry or ip2location). This will be accurate most of the time.
If you really need to get their location, you can get their lat/lng with that method, then query Google's or Yahoo's reverse geocoding service.
share
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Make function wait until element exists
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If you have access to the code that creates the canvas - simply call the function right there after the canvas is created.
If you have no access to that code (eg. If it is a 3rd party code such as google maps) then what you could do is test for the existence in an interval:
var checkExis...