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What does the (unary) * operator do in this Ruby code?
...ch all remaining method arguments in a method definition. In that case, it does not expand, but combine:
def method2(*args) # args will hold Array of all arguments
end
Some more detailed information here.
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Can Visual Studio 2012 be installed side-by-side w/ Visual Studio 2010?
...or Visual Studio 2010 if installed side-by-side on the same instance of Windows?
15 Answers
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Can You Get A Users Local LAN IP Address Via JavaScript?
I know the initial reaction to this question is "no" and "it can't be done" and "you shouldn't need it, you are doing something wrong". What I'm trying to do is get the users LAN IP address, and display it on the web page. Why? Because that's what the page I'm working on is all about, showing as muc...
Share variables between files in Node.js?
...es that can also be require()'d into a given file. Note that you can just do global.foo = 'bar' and then access foo anywhere you'd like... but like I said in my original answer, that is almost never a good thing.
– jmar777
May 13 '14 at 18:42
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How do I iterate through children elements of a div using jQuery?
...ssed as the first argument to the callback function for each(). Check the docs, linked in the answer above.
– Andy E
Sep 22 '16 at 8:33
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Update MongoDB field using value of another field
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The best way to do this is in version 4.2+ which allows using of aggregation pipeline in the update document and the updateOne, updateMany or update collection method. Note that the latter has been deprecated in most if not all languages dri...
Is mathematics necessary for programming? [closed]
...ic foundations, spotting connections between concepts — has been a tremendous help when I have tackled large and complex programming projects.
Consider the way athletes train for their sport. For example, footballers no doubt spend much of their training time on basic football skills. However, t...
Get users by name property using Firebase
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Previously, Firebase required you to generate your own indexes or download all data at a location to find and retrieve elements that matched some child attribute (for example, all users with name === "Alex").
In October 2014, Firebase rolled out new querying functionality via the orderByCh...
The key must be an application-specific resource id
Why do I get this Exception?
10 Answers
10
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What's the difference between “bundle display name” and “bundle name” in cocoa application's info pl
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I don't think any of the other answers concisely answers the question.
CFBundleDisplayName - displayed: below icon. According to docs, should be localized, but only if the app itself is localized, otherwise there will be some...