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How do I write a custom init for a UIView subclass in Swift?
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Then by all means make them var. But the default best practice in Swift is to declare variables let unless there is a reason to declare them var. There was no such reason to do so in my code example above, hence let.
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jQuery Click fires twice when clicking on label
...nt propogation. So if you are using another mechanism (jquery) then by all means get rid of "for".
– Chris Harrington
Oct 7 '14 at 15:20
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How do I show an open file in eclipse Package Explorer?
... you will see the below image in the red circle , just clicked on this one mean when clicked any file in the project will showing you in project explorer.
If you want to show only one file you can
1 - Click right on the file .
2 - Select show-in .
3 - Select show in project explorer .
4 - Done.
T...
Scala actors: receive vs react
...thread blocking on the message (using object.wait() on a monitor) and this means that the complete thread stack is available and ready to continue from the point of "waiting" on receiving a message.
For example if you had the following code
def a = 10;
while (! done) {
receive {
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Should I use an exception specifier in C++?
...t extensible, the second is overambitious and the third is really what you mean, when you write virtual functions.
Legacy code
When you write code which relies on another library, you don't really know what it might do when something goes horribly wrong.
int lib_f();
void g() throw( k_too_small_e...
javax.faces.application.ViewExpiredException: View could not be restored
...(the 0 in content represents the amount of seconds before redirect, 0 thus means "redirect immediately", you can use e.g. 3 to let the browser wait 3 seconds with the redirect)
Note that handling exceptions during ajax requests requires a special ExceptionHandler. See also Session timeout and ViewE...
Python: Get the first character of the first string in a list?
... first character (character zero), which is what the code in your question means.
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What do helper and helper_method do?
...ews provided by the controller (and it's inherited controllers). What this means is doing
# application_controller.rb
helper :all
For Rails > 3.1
# application.rb
config.action_controller.include_all_helpers = true
# This is the default anyway, but worth knowing how to turn it off
makes all...
Is sizeof(bool) defined in the C++ language standard?
... later, bool is implemented as a built-in type with a size of 1 byte. That means that for Visual C++ 4.2, a call of sizeof(bool) yields 4, while in Visual C++ 5.0 and later, the same call yields 1. This can cause memory corruption problems if you have defined structure members of type bool in Visual...
Android Preferences: How to load the default values when the user hasn't used the preferences-screen
...readAgain) will guarantee that user preferences won't be overwritten. That means setting the readAgain argument to false means this will only set the default values if this method has never been called in the past so you don't need to worry about overriding the user's settings each time your Activit...