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mongodb group values by multiple fields
For example, I have these documents:
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When do we need to set ProcessStartInfo.UseShellExecute to True?
If we spawn a new process, when do we need to set UseShellExecute to True?
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Logger slf4j advantages of formatting with {} instead of string concatenation
Is there any advantage of using {} instead of string concatenation?
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The quest for the Excel custom function tooltip
This question has been asked before , but each time the accepted answer is simply a resignation to provide function descriptions using Application.MacroOptions ( VBA6 ) ( VBA7 ), but this information does not actually appear as a tooltip, so it does not solve my problem.
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Interpolating a string into a regex
I need to substitute the value of a string into my regular expression in Ruby. Is there an easy way to do this? For example:
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Vim: What's the difference between let and set?
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:set is for setting options, :let for assigning a value to a variable.
It happens that the value for an option is linked to the name of the option prepended by a & (the &option-name construct then behaves very similar to "ordinary" variables). So, the following are equ...
Python argparse mutual exclusive group
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add_mutually_exclusive_group doesn't make an entire group mutually exclusive. It makes options within the group mutually exclusive.
What you're looking for is subcommands. Instead of prog [ -a xxxx | [-b yyy -c zzz]], you'd have:...
Difference between git checkout --track origin/branch and git checkout -b branch origin/branch
... have the same effect (thanks to Robert Siemer’s answer for pointing it out).
The practical difference comes when using a local branch named differently:
git checkout -b mybranch origin/abranch will create mybranch and track origin/abranch
git checkout --track origin/abranch will only create ...
How to properly URL encode a string in PHP?
I'm making a search page, where you type a search query and the form is submitted to search.php?query=your query . What PHP function is the best and that I should use for encoding/decoding the search query?
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What's the best way of structuring data on firebase?
I am new to firebase and I want to know what's the best way of structuring data on it.
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