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How to convert an NSTimeInterval (seconds) into minutes
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Brief Description
The answer from Brian Ramsay is more convenient if you only want to convert to minutes.
If you want Cocoa API do it for you and convert your NSTimeInterval not only to minutes but also to days, months, week, etc,... I think this is a more generic approach
Use NSCalendar me...
Automatic counter in Ruby for each?
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As people have said, you can use
each_with_index
but if you want indices with an iterator different to "each" (for example, if you want to map with an index or something like that) you can concatenate enumerators with the each_with_index method, or simply use with_index:
blahs...
What do I return if the return type of a method is Void? (Not void!)
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So what am I supposed to return if the return type of a function has to be Void?
Use return null. Void can't be instantiated and is merely a placeholder for the Class<T> type of void.
What's the point of Void?
As noted above, it's a placehold...
Why not abstract fields?
...ring doSomething() {
return errMsg + " from something";
}
}
If your child class "forgets" to initialise the final through the super constructor the compiler will give a warning an error, just like when an abstract method is not implemented.
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Make the first letter uppercase inside a django template
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It works for single-word strings. But, if you have a multi-words string, it's going to upper the first letter of each single word, instead of the first letter of the string.
– Valdir Stumm Junior
Jan 11 '13 at 17:17
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Differences between detach(), hide() and remove() - jQuery
What is the functional difference between these three jQuery methods:
5 Answers
5
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How to set HTTP headers (for cache-control)?
...o be HTTP/1.1 compliant. Also see EXPIRES.
Note: It may be better to specify cache commands in HTTP than in META statements, where they can influence more than the browser, but proxies and other intermediaries that may cache information.
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“git pull” or “git merge” between master and development branches
...ill eventually merge everything from develop into master . I have two different workflows in mind:
5 Answers
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Why does Dijkstra's algorithm use decrease-key?
...ends on what priority queue you use. Here's a quick table that shows off different priority queues and the overall runtimes of the different Dijkstra's algorithm implementations:
Queue | T_e | T_d | T_k | w/o Dec-Key | w/Dec-Key
---------------+--------+--------+--------+------...
Adding :default => true to boolean in existing Rails column
...of ActiveRecord::Migration, so you can't call it like that in the console.
If you want to add a default value for this column, create a new migration:
rails g migration add_default_value_to_show_attribute
Then in the migration created:
# That's the more generic way to change a column
def up
change...