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Deep null checking, is there a better way?
...." to the language that has the semantics you want. (And it has been added now; see below.) That is, you'd say
cake?.frosting?.berries?.loader
and the compiler would generate all the short-circuiting checks for you.
It didn't make the bar for C# 4. Perhaps for a hypothetical future version of t...
Elegant way to invert a map in Scala
... different keys associated with same values. So, if you are interested in knowing all the keys, here's the code:
scala> val m = Map(1 -> "a", 2 -> "b", 4 -> "b")
scala> m.groupBy(_._2).mapValues(_.keys)
res0: Map[String,Iterable[Int]] = Map(b -> Set(2, 4), a -> Set(1))
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CSS Div stretch 100% page height
...of the HTML box. You can also use height:100% on the cloud-container as it now refers to the height of the HTML tag and not the viewport.
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OpenID vs. OAuth [duplicate]
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@Mark: So it is now. I upvoted accepted one up (and yours as well). Should be a badge now.
– Robert Koritnik
May 16 '11 at 10:41
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What to use now Google News API is deprecated? [closed]
As part of a Project I'm working on I've been instructed to implement Google News API into a Web Application.
3 Answers
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How to get time in milliseconds since the unix epoch in Javascript? [duplicate]
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Date.now() returns a unix timestamp in milliseconds.
const now = Date.now(); // Unix timestamp in milliseconds
console.log( now );
Prior to ECMAScript5 (I.E. Internet Explorer 8 and older) you needed to construct a Da...
Why are regular expressions so controversial? [closed]
When exploring regular expressions (otherwise known as RegEx-es), there are many individuals who seem to see regular expressions as the Holy Grail. Something that looks so complicated - just must be the answer to any question. They tend to think that every problem is solvable using regular express...
How to install trusted CA certificate on Android device?
I have created my own CA certificate and now I want to install it on my Android Froyo device (HTC Desire Z), so that the device trusts my certificate.
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What is the “__v” field in Mongoose
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@talentedmrjones @wprl That is exactly what I'm doing now, but I wanted something that I could put in the Schema directly so in all queries.
– diosney
Mar 24 '14 at 11:52
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How do I deploy Node.js applications as a single executable file? [duplicate]
Supposed I have written a Node.js application, and I now would like to distribute it. Of course, I want to make it easy for the user, hence I do not want him to install Node.js, run npm install and then manually type node app.js .
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