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SQLite select where empty?
...imizer - though I would expect them to be identical. You could verify that by using EXPLAIN.
– peterchen
Apr 16 '12 at 11:04
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Case-insensitive search in Rails model
...put. "#$$" is a little-known shortcut for escaping global variables with Ruby string interpolation. It's equivalent to "#{$$}". But string interpolation doesn't happen to user-input strings. Try these in Irb to see the difference: "$##" and '$##'. The first is interpolated (double-quotes). The secon...
Facebook Post Link Image
... to an image that represents the entity. Images must be at least 50 pixels by 50 pixels. Square images work best, but you are allowed to use images up to three times as wide as they are tall.
og:url - The canonical, permanent URL of the page representing the entity. When you use Open Graph tags, the...
Launch Bootstrap Modal on page load
.../div>
</div>
You can still call the modal within your page with by calling it with a link like so:
<a class="btn" data-toggle="modal" href="#myModal" >Launch Modal</a>
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java.lang.OutOfMemoryError: bitmap size exceeds VM budget - Android
...ps.
Bitmaps on the previous activity layout are not properly de-allocated by the garbage collector because they have crossed references to their activity. After many experiments I found a quite good solution for this problem.
First, set the “id” attribute on the parent view of your XML layout:...
Highlight label if checkbox is checked
...cked + span {
font-weight: bold;
}
Example: http://jsfiddle.net/wrumsby/vyP7c/
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What's the best way to communicate between view controllers?
...ey need to work with. Most changes are communicated back up the hierarchy by using NSNotificationCenter; firing the notifications is usually built in to the model itself.
For example, suppose I have an app with Accounts and Transactions. I also have an AccountListController, an AccountController ...
Must qualify the allocation with an enclosing instance of type GeoLocation
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
How to set session timeout in web.config
... idle before it is abandoned. The default value for this attribute is 20.
By assigning a value of 1 to this attribute, you've set the session to be abandoned in 1 minute after its idle.
To test this, create a simple aspx page, and write this code in the Page_Load event,
Response.Write(Session.Ses...
Protected methods in Objective-C
...s it impossible to implement access controls for methods. (You could do it by heavily
modifying the compiler or runtime, at a severe speed penalty, but for obvious reasons this is not done.)
Taken from Source.
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