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Blocks and yields in Ruby
...is a bit puzzling at first.
In Ruby, methods may receive a code block in order to perform arbitrary segments of code.
When a method expects a block, it invokes it by calling the yield function.
This is very handy, for instance, to iterate over a list or to provide a custom algorithm.
Take th...
IE10 renders in IE7 mode. How to force Standards mode?
...ore about these issues at the MSDN article Best Practice: Get your HEAD in order.
Adding the X-UA-Compatible header
If you are using .NET and IIS you can add this to the web.config, you could also do this programmatically:
<system.webServer>
<httpProtocol>
<customHeaders>...
What really happens in a try { return x; } finally { x = null; } statement?
... statement is executed, but the return value isn't affected. The execution order is:
Code before return statement is executed
Expression in return statement is evaluated
finally block is executed
Result evaluated in step 2 is returned
Here's a short program to demonstrate:
using System;
class ...
TextView Marquee not working [duplicate]
...
These attributes must be included in the textview tag in order to allow scrolling.
Everything else is optional.
android:focusable="true"
android:focusableInTouchMode="true"
android:layout_width="fill_parent"
android:ellipsize="marquee"
...
How many Activities vs Fragments?
...lication component that provides a screen with which users can interact in order to do something, ". I do see an error in my original statement, I didn't mean to put "are another screen",
– EFlisio
May 24 '15 at 17:10
...
Does use of final keyword in Java improve the performance?
...arlier tests will warmup the JVM and benefit the later test invocations. Reorder your tests and see what happens. You need to run each test in its own JVM instance.
– Steve Kuo
Jun 5 '14 at 21:56
...
View contents of database file in Android Studio
...
Because you need to install in in order to use
– Paul Paca-Vaca Seleznev
Jun 19 '15 at 14:57
16
...
What's the difference between the atomic and nonatomic attributes?
...= userName_;
}
}
Basically, the atomic version has to take a lock in order to guarantee thread safety, and also is bumping the ref count on the object (and the autorelease count to balance it) so that the object is guaranteed to exist for the caller, otherwise there is a potential race conditi...
Drawable image on a canvas
How can I get an image to the canvas in order to draw on that image?
6 Answers
6
...
HTML5 Canvas vs. SVG vs. div
...lementNS("http://www.w3.org/2000/svg", "svg");
svg.setAttribute('style', 'border: 1px solid black');
svg.setAttribute('width', '6000');
svg.setAttribute('height', '6000');
svg.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns:xlink",
"http://www.w3.org/1999/xlink");
document.body.appendCh...