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What is the difference between onBlur and onChange attribute in HTML?
... take a look at quirksmode's intro to events. This is a great place to get info on what's going on in your browser when you interact with it. His book is good too.
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How to obtain the number of CPUs/cores in Linux from the command line?
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grep -c ^processor /proc/cpuinfo
will count the number of lines starting with "processor" in /proc/cpuinfo
For systems with hyper-threading, you can use
grep ^cpu\\scores /proc/cpuinfo | uniq | awk '{print $4}'
which should return (for exam...
navigator.geolocation.getCurrentPosition sometimes works sometimes doesn't
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I have been having exactly the same problem, and finding almost no information online about it. Nothing at all in the books. Finally I found this sober query on stackoverflow and (ha!) it was the final impetus I needed to set up an account here.
And I have a partial answer, but alas not a c...
Calculate last day of month in JavaScript
...eBlueAussie: I only wanted to point future readers to our treasure of more info (I linked both our answers so that anyone who cares or wanting to take another go at it can look at our edit-history to see when we did what and why). I still fondly remember our full day of competition! :) The very firs...
View contents of database file in Android Studio
...he db with a remote shell instead of pulling the file each time.
Find all info here:
http://developer.android.com/tools/help/adb.html#sqlite
1- Go to your platform-tools folder in a command prompt
2- Enter the command adb devices to get the list of your devices
C:\Android\adt-bundle-windows-x86_...
ALTER TABLE without locking the table?
...exes.
see MySQL 5.6 Reference Manual -> InnoDB and Online DDL for more info.
It seems that online DDL also available in MariaDB
Alternatively you can use ALTER ONLINE TABLE to ensure that your ALTER
TABLE does not block concurrent operations (takes no locks). It is
equivalent to LOCK=NO...
jQuery append fadeIn
...ution I went with:
function onComplete(event, queueID, fileObj, response, info) {
var data = eval('(' + response + ')');
if (data.success) {
$('#file-' + queueID).fadeOut(1000);
var img = new Image();
$(img).load(function () { // wait for thumbnail to finish loading ...
Memcache(d) vs. Varnish for speeding up 3 tier web architecture
...te -- Varnish will serve a lot of the pages for you, Memcache will provide info for pages that have a mixture of known and new data allowing you to generate pages faster.
An example that could apply to stackoverflow.com: adding this comment invalidated the page cache, so this page would have to be...
Compare two Byte Arrays? (Java)
...;
}
And you could check on Comparing arrays in JUnit assertions for more infos.
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Using git commit -a with vim
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Try ZZ to save and close.
Here is a bit more info on using vim with Git
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