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Receive JSON POST with PHP

... Try; $data = json_decode(file_get_contents('php://input'), true); print_r($data); echo $data["operacion"]; From your json and your code, it looks like you have spelled the word operation correctly on your end, but it isn't in the json. EDI...
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unit testing of private functions with mocha and node.js

...r. One way to get around it now is to use module.exports = process.env.NODE_ENV === 'production' ? require('prod.js') : require('dev.js') and store your es6 code differences in those respective files. – cchamberlain Jun 1 '16 at 1:51 ...
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django unit tests without a db

... You can subclass DjangoTestSuiteRunner and override setup_databases and teardown_databases methods to pass. Create a new settings file and set TEST_RUNNER to the new class you just created. Then when you're running your test, specify your new settings file with --settings flag. H...
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What are the special dollar sign shell variables?

...nt options set for the shell. $$ pid of the current shell (not subshell). $_ most recent parameter (or the abs path of the command to start the current shell immediately after startup). $IFS is the (input) field separator. $? is the most recent foreground pipeline exit status. $! is the PID of the m...
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What are some (concrete) use-cases for metaclasses?

...ate methods, than to do something like: class PlottingInteractive: add_slice = wrap_pylab_newplot(add_slice) This method doesn't keep up with API changes and so on, but one that iterates over the class attributes in __init__ before re-setting the class attributes is more efficient and keeps t...
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Can a C# lambda expression have more than one statement?

...ven without curly brackets: Action<int, int> action = (x, y) => (_, _) = (X += x, Y += y); and Action<int, int> action = (x, y) => _ = (X += x, Y += y); would be the same as: Action<int, int> action = (x, y) => { X += x; Y += y; }; This also might be helpful if yo...
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Makefile, header dependencies

...or a simple version without build dirs see [codereview]. CXX = clang++ CXX_FLAGS = -Wfatal-errors -Wall -Wextra -Wpedantic -Wconversion -Wshadow # Final binary BIN = mybin # Put all auto generated stuff to this build dir. BUILD_DIR = ./build # List of all .cpp source files. CPP = main.cpp $(wildc...
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Truncating floats in Python

...imal module str(Decimal(s).quantize(Decimal((0, (1,), -n)), rounding=ROUND_DOWN)) The first step, converting to a string, is quite difficult because there are some pairs of floating point literals (i.e. what you write in the source code) which both produce the same binary representation and yet s...
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Immutability of Strings in Java

...lease? That will make my understanding clear. – Light_handle Oct 12 '09 at 17:30 17 I've never se...
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How can I custom-format the Autocomplete plug-in results?

...cluded in v1.8rc3 of jQuery UI, the popup of suggestions is created in the _renderMenu function of the autocomplete widget. This function is defined like this: _renderMenu: function( ul, items ) { var self = this; $.each( items, function( index, item ) { self._renderItem( ul, item...