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Alter MySQL table to add comments on columns
...he output of a SHOW CREATE TABLE statement. This protects you from accidentally losing an important part of your column definition by not realising that you need to include it in your MODIFY or CHANGE clause. For example, if you MODIFY an AUTO_INCREMENT column, you need to explicitly specify the AUT...
How to display hidden characters by default (ZERO WIDTH SPACE ie. ​)
...ing problems with parsing config file of my app... I discovered it accidentally in vi.
2 Answers
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Check if a program exists from a Makefile
How can I check if a program is callable from a Makefile?
12 Answers
12
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Amazon EC2, mysql aborting start because InnoDB: mmap (x bytes) failed; errno 12
... the crash you may need to setup a swap space for your micro instance. Actually performance wise is better to enable swap.
Steps below show how to make a swap space for your Micro instance. I assume you have AWS Account with a Micro instance running.
Run dd if=/dev/zero of=/swapfile bs=1M count=102...
How do I use regex in a SQLite query?
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A SQLite UDF in PHP/PDO for the REGEXP keyword that mimics the behavior in MySQL:
$pdo->sqliteCreateFunction('regexp',
function ($pattern, $data, $delimiter = '~', $modifiers = 'isuS')
{
if (isset($pattern, $data) === tr...
Ajax tutorial for post and get [closed]
...Id = $("ul.nav").first().attr("id");
var request = $.ajax({
url: "script.php",
type: "POST",
data: {id : menuId},
dataType: "html"
});
request.done(function(msg) {
$("#log").html( msg );
});
request.fail(function(jqXHR, textStatus) {
alert( "Request failed: " + textStatus );
});
...
Easiest way to copy a single file from host to Vagrant guest?
...py files but didn't work and giving error vagrant scp /vagrant/www/koushik.php ubuntu/trusty64:/usr/share/nginx/html I am trying to copy files into the nginx root directory. It says, The machine with the name 'C' was not found configured for this Vagrant environment. The directory and everything is ...
How to read the Stock CPU Usage data
... screen, showing how much the CPU is being used. The top red bar shows overall CPU usage, and the green bar underneath it shows the CPU time spent in compositing the screen. Note: You cannot turn this feature off once it is on, without restarting the emulator. developer.android.com/tools/debugging/...
HTML5 Canvas vs. SVG vs. div
...rs.
Canvas has the best performance hands-down, but you have to implement all concepts of managed state (object selection, etc) yourself, or use a library.
The long answer:
HTML5 Canvas is simply a drawing surface for a bit-map. You set up to draw (Say with a color and line thickness), draw tha...
AngularJS - Value attribute on an input text box is ignored when there is a ng-model used?
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Vojta described the "Angular way", but if you really need to make this work, @urbanek recently posted a workaround using ng-init:
<input type="text" ng-model="rootFolders" ng-init="rootFolders='Bob'" value="Bob">
https://groups.google.com/d/msg/angular/Hn3eztNHFXw...