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Ajax using https on an http page
...nd https protocol; it doesn't affect the content. My site uses jQuery ajax calls, which fills some areas on the page, too.
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Select rows which are not present in other table
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There are basically 4 techniques for this task, all of them standard SQL.
NOT EXISTS
Often fastest in Postgres.
SELECT ip
FROM login_log l
WHERE NOT EXISTS (
SELECT -- SELECT list mostly irrelevant; can just be empty in Postg...
DataContractSerializer doesn't call my constructor?
...ssible : when deserializing an object, the DataContractSerializer doesn't call the constructor !
4 Answers
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A simple command line to download a remote maven2 artifact to the local repository?
I have a library that I distribute using maven 2. The typical user of this library doesn't use maven to build their applications, but is likely somewhat familiar with maven and probably has it installed.
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Loading existing .html file with android WebView
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ok, that was my very stupid mistake. I post the answer here just in case someone has the same problem.
The correct path for files stored in assets folder is file:///android_asset/* (with no "s" for assets folder which i was always thinking it must have a "s").
And, mWebView.loadUrl("file://...
Linq order by boolean
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I sort of like this more than the built in way. Mainly because even if there is an implied ordering for true/false, it isn't really obvious to anyone who hasn't done it before. So someone that doesn't know looking at code in the future could think it sorts true to false, when reall...
PostgreSQL delete all content
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Use the TRUNCATE TABLE command.
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Angularjs if-then-else construction in expression
Can I somehow use if-then-else construction (ternary-operator) in angularjs expression, for example I have function $scope.isExists(item) that has to return bool value.
I want something like this,
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Python Pandas merge only certain columns
...a', 'b']. That works if each column has a single letter as a name. In your case I think you need to do df1.merge(df2['Unique_External_Users'], *other_arguments). ...Most probably you already solved it by now, just leaving this for newbies around, like me
– SOf_PUAR
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cmake and libpthread
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@Manuel was part way there. You can add the compiler option as well, like this:
If you have CMake 3.1.0+, this becomes even easier:
set(THREADS_PREFER_PTHREAD_FLAG ON)
find_package(Threads REQUIRED)
target_link_libraries(my_app PRIVATE Threads::Threads)
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