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How to search in array of object in mongodb
...ith National Medal in 1975.
See MongoDB $elemMatch Documentation for more info. See Read Operations Documentation for more information about querying documents with arrays.
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Listing only directories using ls in Bash?
...s/ masters/
draft/ hacks/ static/
Or as list (with detail info): ls -dl */
3. Using ls and grep
Example: ls -l | grep "^d"
Here is what I got:
drwxr-xr-x 24 h staff 816 Jun 8 10:55 cs
drwxr-xr-x 6 h staff 204 Jun 8 10:55 draft
drwxr-xr-x 9 h staff 306 ...
Library not loaded: /usr/local/opt/readline/lib/libreadline.6.2.dylib
...ata.
What I do, is to switch the version of readline. When you check brew info readline, you will find different versions, mine is 6.3.8, so I switch to that version by executing:
$ brew switch readline 6.3.8
It will change to 6.3.8 and create the link:
Cleaning /usr/local/Cellar/readline/6.3.8...
Programmatically add custom event in the iPhone Calendar
...esent Add Event screen of Calendar app (using URL Scheme) and pass event's info so that when Add Event screen appear, it will have pre filled data. User just need to press add event button. In your example event added without any indication to user.
– Ans
May 1...
Creating a blocking Queue in .NET?
... dequeue use Take(). It internally uses non-blocking ConcurrentQueue. More info here Fast and Best Producer/consumer queue technique BlockingCollection vs concurrent Queue
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C++ code file extension? .cc vs .cpp [closed]
...for you.
I just wanted to add the following to help with some .cc vs .cpp info that I found. The following are extensions broken down by different environments (from the "C++ Primer Plus" book):
Unix uses: .C, .cc, .cxx, .c
GNU C++ uses: .C, .cc, .cxx, .cpp, .c++
Digital Mars uses: .cpp, .cxx
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Is there a built-in method to compare collections?
...mplicit default equality comparers) will fail your test (under all culture infos I am aware of): var dictionary1 = new Dictionary<string, int> { { "Strasse", 10 }, { "Straße", 20 }, }; var dictionary2 = new Dictionary<string, int> { { "Straße", 20 }, { "Strasse", 10 }, };
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Running the new Intel emulator for Android
...cannot be installed. Please refer to the Intel HAXM documentation for more information.
– Rasool Ghafari
Feb 23 '14 at 10:10
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Sending emails in Node.js? [closed]
...hard work for setting its up. just copied the example code, changed to my info (read about SSL secure) and it just worked. great for simple email sender!
– user3052629
Aug 21 '15 at 22:22
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Failed to serialize the response in Web API with Json
...create a new instance of the data model class populated with the necessary info you want to expose. The return an IEnumerable of UserModel objects as opposed to User entities. Make sure the model Properties don't refer to instances of the UserModel class. That is what is getting you into this pro...