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What does Ruby have that Python doesn't, and vice versa?
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34
votes
Ruby has the concepts of blocks, which are essentially syntactic sugar around...
Getting a random value from a JavaScript array
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24 Answers
24
Active
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QuotaExceededError: Dom exception 22: An attempt was made to add something to storage that exceeded
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374
This can occur when Safari is in private mode browsing. While in private browsing, local storage...
Named capturing groups in JavaScript regex?
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141
ECMAScript 2018 introduces named capturing groups into JavaScript regexes.
Example:
const a...
Making button go full-width?
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842
Bootstrap v3 & v4
Use btn-block class on your button/element
Bootstrap v2
Use input-bloc...
How to increase storage for Android Emulator? (INSTALL_FAILED_INSUFFICIENT_STORAGE)
... "additional emulator command line options," add this:
-partition-size 1024
Then CLOSE the emulator (and remove any devices), and click the debug icon, which will launch the preferred emulator you selected. This is important: Eclipse needs to launch the debugger, not AVD.
That fixed the problem ...
What is the difference between map and flatMap and a good use case for each?
... values from those that return a Some:
val rdd = sc.parallelize(Seq(1,2,3,4))
def myfn(x: Int): Option[Int] = if (x <= 2) Some(x * 10) else None
rdd.flatMap(myfn).collect
res3: Array[Int] = Array(10,20)
(noting here that an Option behaves rather like a list that has either one element, ...
Create space at the beginning of a UITextField
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This is what I am using right now:
Swift 4.2
class TextField: UITextField {
let padding = UIEdgeInsets(top: 0, left: 5, bottom: 0, right: 5)
override open func textRect(forBounds bounds: CGRect) -> CGRect {
return bounds.inset(by: padding)
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java.lang.ClassNotFoundException: org.springframework.web.context.ContextLoaderListener
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Robert J. Walker
8,63255 gold badges4040 silver badges6262 bronze badges
answered Nov 14 '11 at 21:19
MarceloMarcelo
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