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Should I initialize variable within constructor or outside constructor [duplicate]
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I find the second style (declaration + initialization in one go) superior. Reasons:
It makes it clear at a glance how the variable is initialized. Typically, when reading a program and coming across a variable, you'll first go to its declaration (often automatic in IDEs). With st...
How do I replace a character at a particular index in JavaScript?
...rary may still use/create a similar function -- 2 bad ideas making a worse one. In general, just never play around with other peoples code (include the core system). Create a new function.
– martyman
Jun 5 '12 at 1:05
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What are the applications of binary trees?
...al speed advantage.
In a (balanced) binary tree with m nodes, moving from one level to the next requires one comparison, and there are log_2(m) levels, for a total of log_2(m) comparisons.
In contrast, an n-ary tree will require log_2(n) comparisons (using a binary search) to move to the next leve...
How to stop mongo DB in one command
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If you literally want a one line equivalent to the commands in your original question, you could alias:
mongo --eval "db.getSiblingDB('admin').shutdownServer()"
Mark's answer on starting and stopping MongoDB via services is the more typical (and r...
Multiple HttpPost method in Web API controller
... your actions by name (rather than let the Web API automatically determine one for you based on the verb) like this:
[POST] /api/VTRouting/TSPRoute
[POST] /api/VTRouting/Route
Contrary to popular belief, there is nothing wrong with this approach, and it's not abusing Web API. You can still lever...
Database design for a survey [closed]
...iple choice questions, and possibly questions that could contain more than one answer (i.e. check all that apply).
11 Answe...
Eclipse - “Workspace in use or cannot be created, chose a different one.” [duplicate]
... @LucasMalor in my case it wasn't exist, but good addition, may be someone will need it, thanks
– Muhammed Refaat
Jul 1 '15 at 8:10
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Why would someone use WHERE 1=1 AND in a SQL clause?
Why would someone use WHERE 1=1 AND <conditions> in a SQL clause (Either SQL obtained through concatenated strings, either view definition)
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Which is a better way to check if an array has more than one element?
I just need to check if an array has more than one element.
I am trying to do it this way :
11 Answers
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How does password salt help against a rainbow table attack?
..., and makes it infeasible to use a rainbow table.
To understand the first one, imagine a single password file that contains hundreds of usernames and passwords. Without a salt, I could compute "md5(attempt[0])", and then scan through the file to see if that hash shows up anywhere. If salts are pres...