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How to push both value and key into PHP array
... on the usage of the union operator vs array_merge in the documentation at http://php.net/manual/en/function.array-merge.php.
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Rails DB Migration - How To Drop a Table?
... information about how to accomplish different tasks in a migration here:
http://api.rubyonrails.org/classes/ActiveRecord/Migration.html
More specifically, you can see how to drop a table using the following approach:
drop_table :table_name
...
Cloning an Object in Node.js
...j1.x); // still logs 5
Source code of Node's _extend function is in here: https://github.com/joyent/node/blob/master/lib/util.js
exports._extend = function(origin, add) {
// Don't do anything if add isn't an object
if (!add || typeof add !== 'object') return origin;
var keys = Object.keys(ad...
Allow multiple roles to access controller action
...;
foreach (var role in this.UserProfilesRequired)
if (HttpContext.Current.User.IsInRole(role))
{
authorized = true;
break;
}
if (!authorized)
{
var url = new UrlHelper(context.RequestContext);
...
MySQL check if a table exists without throwing an exception
...ble_name = '[table name]';
Any results indicate the table exists.
From: http://www.electrictoolbox.com/check-if-mysql-table-exists/
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How to break out of nested loops?
...e from LLVM team:
"Turn Predicate Loops into Predicate Functions"
See:
http://llvm.org/docs/CodingStandards.html#turn-predicate-loops-into-predicate-functions
How to play a notification sound on websites?
... audio = new Audio(url);
audio.play();
}
<button onclick="playSound('https://your-file.mp3');">Play</button>
Browser support
Edge 12+, Firefox 20+, Internet Explorer 9+, Opera 15+, Safari 4+, Chrome
Codecs Support
Just use MP3
Old solution
(for legacy browsers)
function playSound(...
How to disable mouseout events triggered by child elements?
...Query equivalent of javascript's prevent event bubbling.
Check this out:
http://docs.jquery.com/Events/jQuery.Event#event.stopPropagation.28.29
Basically you need to catch the event in the children DOM nodes, and there stop their propagation up the DOM tree. Another way, although really not sugge...
Autoreload of modules in IPython [duplicate]
...
There is an extension for that, but I have no usage experience yet:
http://ipython.scipy.org/ipython/ipython/attachment/ticket/154/ipy_autoreload.py
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Java JDBC - How to connect to Oracle using Service Name instead of SID
...
http://download.oracle.com/docs/cd/B28359_01/java.111/b31224/urls.htm#BEIDHCBA
Thin-style Service Name Syntax
Thin-style service names are supported only by the JDBC Thin driver. The syntax is:
@//host_name:port_number/servi...