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Calculate the date yesterday in JavaScript

... @Zargold Don't understand what you mean. node --version v9.4.0 node const date = new Date() undefined > date.toISOString() '2018-02-10T16:26:30.821Z' > date.setDate(date.getDate() - 1) 1518193590821 > date.toISOString() '2018-02-09T16:...
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Can I call a constructor from another constructor (do constructor chaining) in C++?

... C++11: Yes! C++11 and onwards has this same feature (called delegating constructors). The syntax is slightly different from C#: class Foo { public: Foo(char x, int y) {} Foo(int y) : Foo('a', y) {} }; C++03: No Unfortunately, there'...
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How do I remove the Devise route to sign up?

... option. You can either provide a patch or use :skip => :registerable and add only the routes you want. The original question was : Is there any good way to remove a specific route (the delete route) from Rails? ...
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Mod in Java produces negative numbers [duplicate]

... The problem here is that in Python the % operator returns the modulus and in Java it returns the remainder. These functions give the same values for positive arguments, but the modulus always returns positive results for negative input, whereas the remainder may give negative results. There's...
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Can I use a function for a default value in MySql?

... Note that as per the already linked docs in answer: ... stored functions, and user-defined functions are not permitted. I.e., the only functions that can be used as default expressions are built-in functions. – asherbar Mar 29 at 21:19 ...
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How to update a single library with Composer?

... To install doctrine/doctrine-fixtures-bundle with version 2.1.* and minimum stability @dev use this: composer.phar require doctrine/doctrine-fixtures-bundle:2.1.*@dev then to update only this single package: composer.phar update doctrine/doctrine-fixtures-bundle ...
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How to know if an object has an attribute in Python

...at, if the property is likely to be there most of the time, simply call it and either let the exception propagate, or trap it with a try/except block. This will likely be faster than hasattr. If the property is likely to not be there most of the time, or you're not sure, using hasattr will probably ...
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How to get just one file from another branch

I am using git and working on master branch. This branch has a file called app.js . 10 Answers ...
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How do you build a Singleton in Dart?

...all when it's really a constructor definition. There's the _internal name. And there's the nifty language design point that Dart lets you start out (dart out?) using an ordinary constructor and then, if needed, change it to a factory method without changing all the callers. – J...
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Maven is not working in Java 8 when Javadoc tags are incomplete

Since I use Maven I have been able to build and install in my local repository projects that have incomplete Javadoc tags (for example, a missing parameter). ...