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How to list all users in a Linux group?
How do I list all members of a group in Linux (and possibly other unices)?
20 Answers
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When to use enumerateObjectsUsingBlock vs. for
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Ultimately, use whichever pattern you want to use and comes more naturally in the context.
While for(... in ...) is quite convenient and syntactically brief, enumerateObjectsUsingBlock: has a number of features that may or may not prove interesting:
enumerateObjectsUsingB...
Can I Set “android:layout_below” at Runtime Programmatically?
...ible when creating a RelativeLayout at runtime to set the equivalent of android:layout_below programmatically?
4 Answer...
How to remove a field from params[:something]
... this question was written newer versions of Rails have added the extract! and except eg:
new_params = params.except[the one I wish to remove]
This is a safer way to 'grab' all the params you need into a copy WITHOUT destroying the original passed in params (which is NOT a good thing to do as it ...
Sort NSArray of date strings or objects
...[NSArray sortedArrayUsingSelector: or -[NSMutableArray sortUsingSelector:] and pass @selector(compare:) as the parameter. The -[NSDate compare:] method will order dates in ascending order for you. This is simpler than creating an NSSortDescriptor, and much simpler than writing your own comparison fu...
How to store arbitrary data for some HTML tags
...n example: links which send an AJAX request to get the content of articles and then display that data in a div. Obviously in this example, I need each link to store an extra bit of information: the id of the article. The way I've been handling it in case was to put that information in the href link ...
How do I manage MongoDB connections in a Node.js web application?
...tive says:
You open do MongoClient.connect once when your app boots up and reuse
the db object. It's not a singleton connection pool each .connect
creates a new connection pool.
So, to answer your question directly, reuse the db object that results from MongoClient.connect(). This gives yo...
MVC which submit button has been pressed
...;/button> for i18n purposes, so the user facing string is customizable, and form element names are never directly exposed to the user (which is odd in and of itself)
– KyleMit
Mar 19 '18 at 16:53
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How do I create delegates in Objective-C?
I know how delegates work, and I know how I can use them.
19 Answers
19
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Remove everything after a certain character
...hoose everything up to that character? I'm getting the value from an href and up to the "?", and it's always going to be a different amount of characters.
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