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Is it true that one should not use NSLog() on production code?
... prefix header rather than its own file. You could, if you wanted, build a more complicated logging system by having DebugLog interact with normal Objective-C objects. For instance, you could have a logging class that writes to its own log file (or database), and includes a 'priority' argument you c...
How to create a new java.io.File in memory?
...atic and tell what the user could do instead. Andreas’ answer is clearly more thorough and a better (attempt at an) answer.
– haraldK
Jan 17 at 12:11
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How should I have explained the difference between an Interface and an Abstract class?
... still only extend a single class. As such, using an interface can provide more flexibility for those who want to use it, along with other interfaces.
– thecoshman
May 16 '16 at 14:19
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How to get current moment in ISO 8601 format with date, hour, and minute?
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How do I negate a condition in PowerShell?
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How to secure MongoDB with username and password
...s.mongodb.com/manual/tutorial/enable-authentication/
If you want to learn more about what the roles actually do read more here: https://docs.mongodb.com/manual/reference/built-in-roles/
1) Start MongoDB without access control.
mongod --dbpath /data/db
2) Connect to the instance.
mongo
3) Cr...
Any reason not to use '+' to concatenate two strings?
...ier to read than ''.join([a, b]).
You are right though that concatenating more than 2 strings with + is an O(n^2) operation (compared to O(n) for join) and thus becomes inefficient. However this has not to do with using a loop. Even a + b + c + ... is O(n^2), the reason being that each concatenatio...
twitter bootstrap navbar fixed top overlapping site
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PHP date() format when inserting into datetime in MySQL
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