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How to assign colors to categorical variables in ggplot2 that have stable mapping?
...maintain consistent color schemes across multiple data frames that are not all obtained by subsetting a single large data frame. Managing the factors levels in multiple data frames can become tedious if they are being pulled from separate files and not all factor levels appear in each file.
One way...
How can I merge properties of two JavaScript objects dynamically?
...Later properties overwrite earlier properties with the same name. */
const allRules = {...obj1, ...obj2, ...obj3};
Here is also the MDN documentation for this syntax. If you're using babel you'll need the babel-plugin-transform-object-rest-spread plugin for it to work.
ECMAScript 2015 (ES6) Stand...
What is the difference between a function expression vs declaration in JavaScript? [duplicate]
...
They're actually really similar. How you call them is exactly the same.The difference lies in how the browser loads them into the execution context.
Function declarations load before any code is executed.
Function expressions load only...
What does 'const static' mean in C and C++?
...t depending on the architecture, and might be in memory marked read-only.
All that is how C treats these variables (or how C++ treats namespace variables). In C++, a member marked static is shared by all instances of a given class. Whether it's private or not doesn't affect the fact that one variab...
When monkey patching an instance method, can you call the overridden method from the new implementat
Say I am monkey patching a method in a class, how could I call the overridden method from the overriding method? I.e. Something a bit like super
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Checkout one file from Subversion
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The really simple solution is to access the repository with a web browser.
– dolmen
Jul 9 '10 at 8:32
11
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What's the deal with a leading underscore in PHP class methods?
... { to give it some extra weight.
I've never heard of developers prefacing all their methods with underscores, so I can't begin to explain what causes that.
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How does the keyword “use” work in PHP and can I import classes with it?
...t;baz;
}
}
class Cls {
use Stuff; // import traits like this
}
$foo = new Cls;
echo $foo->bar(); // spits out 'baz'
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Python: reload component Y imported with 'from X import Y'?
... verse (import this from interactive prompt to see the Zen of Python); and all the reasons why namespaces are a honking great idea (immediate local visual clues that the name's being looked up, ease of mocking/injecting in tests, ability to reload, ability for a module to change flexibly by redefini...
How to do constructor chaining in C#
... base()
For "why?":
code reduction (always a good thing)
necessary to call a non-default base-constructor, for example:
SomeBaseType(int id) : base(id) {...}
Note that you can also use object initializers in a similar way, though (without needing to write anything):
SomeType x = new SomeTyp...