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Example for sync.WaitGroup correct?
...rrect? It gives the expected result, but I am unsure about the wg.Add(4) and the position of wg.Done() . Does it make sense to add the four goroutines at once with wg.Add() ?
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Is it possible to use the instanceof operator in a switch statement?
...en you can simply call do() on this.
If you are not free to change A, B, and C, you could apply the visitor pattern to achieve the same.
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Graph Algorithm To Find All Connections Between Two Arbitrary Vertices
...l non-cyclical paths between two nodes. This algorithm should be very fast and scale to large graphs (The graph data structure is sparse so it only uses as much memory as it needs to).
I noticed that the graph you specified above has only one edge that is directional (B,E). Was this a typo or is it...
Weird PHP error: 'Can't use function return value in write context'
I'm getting this error and I can't make head or tail of it.
12 Answers
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DBMS_OUTPUT.PUT_LINE not printing
When executing the following code, it just says the procedure is completed and doesn't print the infomation i want it to (firstName, lastName) and then the other values from the select query in a table below.
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How to move a file?
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Note that you must include the file name (file.foo) in both the source and destination arguments. If it is changed, the file will be renamed as well as moved.
Note also that in the first two cases the directory in which the new file is being created must already exist. On Windows, a file with t...
Correct way to remove plugin from Eclipse
...pping into the dropins folder, then just delete it from the dropins folder and restart Eclipse.
See the answer of @Cogentleman for more recent versions of Eclipse.
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How to npm install to a specified directory?
...efix option. Is there a way to have package.json in the current directory and install to the alternate directory ?
– user2258887
Jun 4 '15 at 19:30
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Join/Where with LINQ and Lambda
I'm having trouble with a query written in LINQ and Lambda. So far, I'm getting a lot of errors here's my code:
9 Answers
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Rails 3 - can't install pg gem
...g= 'PATH_TO_YOUR_PG_CONFIG'
If you are not sure where your pg_config is, and assuming you are on Linux or Mac, you can run the following command:
which pg_config
Your pg-config can be in different locations depending on how you installed postgres.
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