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How can I tell where mongoDB is storing data? (its not in the default /data/db!)
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Well this one SHOULD print the current path precisely for all mongodb version stackoverflow.com/a/52036070/248616
– Nam G VU
Jun 2 '19 at 10:51
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Is there a splice method for strings?
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Creating temp vars and introducing places for off-by-one errors, not to mention code that takes longer for humans to process as opposed to split("").splice(...).join("") is a tradeoff that deserves consideration. The speed issue is only an issue if it's an issue.
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How to use random in BATCH script?
...th:
set /a num=%random% %%100
- will produce number between 0~99.
This one:
set /a num=%random% %%100 +1
- will produce number between 1~100.
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Create a GUID in Java
...erate many millions of such values in your app and still sleep well. Using one of the other variants further reduces the possibility of collisions even closer to zero because of using "space and time", [1] MAC address or name, and [2] current date-time, as constraints.
– Basil ...
Creating an R dataframe row-by-row
I would like to construct a dataframe row-by-row in R. I've done some searching, and all I came up with is the suggestion to create an empty list, keep a list index scalar, then each time add to the list a single-row dataframe and advance the list index by one. Finally, do.call(rbind,) on the list...
CSS Classes & SubClasses
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I don't really use subclasses myself......can anyone give me a reason where this would be necessary?
– patricksweeney
Feb 18 '09 at 4:12
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Bash tool to get nth line from a file
...o, universal syntax :). It is NOT less effective, because redirection are done with shell when forking itself, so... it is only a preference... (and yes, it is one character longer) :)
– jm666
May 27 '13 at 16:11
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What is a “static” function in C?
...e variable". This is Smalltalk terminology. This means that there is only one copy of a static data member shared by all objects of a class, while each object has its own copy of a non-static data member. So a static data member is essentially a global variable, that is a member of a class.
Non-s...
Android Spinner : Avoid onItemSelected calls during initialization
... I tried this solution with my same problem, but this woks only one, eg: when I have 2 items on dropdown, it woks when I select any spinner item 1st time, when I try 2nd time its not working properly
– Waseem
Dec 7 '18 at 8:22
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EF Code First “Invalid column name 'Discriminator'” but no inheritance
...othing special about it. I have many tables in my database similar to that one, but for some reason, this table ended up with a "Discriminator" column on the EF Proxy Class.
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