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How can you use optional parameters in C#?
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Getting All Variables In Scope
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edited Nov 17 '15 at 13:43
Daniel Wolf
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answe...
Sql Server equivalent of a COUNTIF aggregate function
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342
You could use a SUM (not COUNT!) combined with a CASE statement, like this:
SELECT SUM(CASE W...
Why do access tokens expire?
...on't expire?
– Thilo
Jul 6 '12 at 6:31
4
What is a bearer token, and what does it have to do with...
Is there a documented way to set the iPhone orientation?
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This is no longer an issue on the later iPhone 3.1.2 SDK. It now appears to honor the requested orientation of the view being pushed back onto the stack. That likely means that you would need to detect older iPhone OS versions and only apply the setOrientation when it i...
Header files for x86 SIMD intrinsics
...MX
<xmmintrin.h> SSE
<emmintrin.h> SSE2
<pmmintrin.h> SSE3
<tmmintrin.h> SSSE3
<smmintrin.h> SSE4.1
<nmmintrin.h> SSE4.2
<ammintrin.h> SSE4A
<wmmintrin.h> AES
<immintrin.h> AVX, AVX2, FMA
Including one of these pulls in all previous ones (excep...
Android destroying activities, killing processes
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30
First please have a look at this:
onPause() Called when the system is about to start res...
Proper way to return JSON using node or Express
...wkward reason, you could use something like JSON.stringify(anObject, null, 3)
It's important that you set the Content-Type header to application/json, too.
var http = require('http');
var app = http.createServer(function(req,res){
res.setHeader('Content-Type', 'application/json');
res.end(J...
Compare two DataFrames and output their differences side-by-side
...2 True
dtype: bool
Then we can see which entries have changed:
In [23]: ne_stacked = (df1 != df2).stack()
In [24]: changed = ne_stacked[ne_stacked]
In [25]: changed.index.names = ['id', 'col']
In [26]: changed
Out[26]:
id col
1 score True
2 isEnrolled True
Comment ...
Retrieve only the queried element in an object array in MongoDB collection
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db.test.find({"shapes.color": "red"}, {_id: 0, 'shapes.$': 1});
MongoDB 3.2 Update
Starting with the 3.2 release, you can use the new $filter aggregation operator to filter an array during projection, which has the benefit of including all matches, instead of just the first one.
db.test.aggrega...