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What is the difference between map and flatMap and a good use case for each?
...ses are red", "Violets are blue")) // lines
rdd.collect
res0: Array[String] = Array("Roses are red", "Violets are blue")
Now, map transforms an RDD of length N into another RDD of length N.
For example, it maps from two lines into two line-lengths:
rdd.map(_.length).collect
res1: Arr...
What does $$ mean in the shell?
...e mktemp option -t is now deprecated (I think because of problems with the char -). Use mktemp ${tempfoo}.XXXXXX these days. I take the liberty to update your post.
– Sebastian
Jan 10 '14 at 11:44
...
Detect network connection type on Android
...ived from a @hide method in TelephonyManager.java).
This method returns a String describing the current connection type.
i.e. one of : "WIFI" , "2G" , "3G" , "4G" , "5G" , "-" (not connected) or "?" (unknown)
Remark: This code requires API 25+, but you can easily support older versions by using i...
Generate JSON string from NSDictionary in iOS
I have a dictionary I need to generate a JSON string by using dictionary . Is it possible to convert it? Can you guys please help on this?
...
How can I remove an element from a list, with lodash?
...
Yet, that's the only one that works with strings in array. _.remove just flushes the array.
– Yauheni Prakopchyk
Dec 17 '15 at 12:57
3
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How to align checkboxes and their labels consistently cross-browsers
...ght on the checkbox and then overflow: hidden for some reason cuts off the extra space and allows IE's positioning to act very similarly to Safari and Firefox.
Depending on your text sizing, you'll no doubt need to adjust the relative positioning, width, height, and so forth to get things looking ri...
Check if an array contains any element of another array in JavaScript
...arget.
Of course, you can swap out numbers for anything you want to use - strings are fine, like your example.
And in my specific example, the result should be true because the second array's 3 exists in the target.
UPDATE:
Here's how I'd organize it into a function (with some minor changes fr...
Finding out whether a string is numeric or not
How can we check if a string is made up of numbers only. I am taking out a substring from a string and want to check if it is a numeric substring or not.
...
Should we @Override an interface's method implementation?
...prohibited the annotation, with 1.6 it doesn't. The annotation provides an extra compile-time check, so if you're using 1.6 I'd go for it.
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How to parse JSON in Scala using standard Scala classes?
...pply(a:Any):Option[T] = Some(a.asInstanceOf[T]) }
object M extends CC[Map[String, Any]]
object L extends CC[List[Any]]
object S extends CC[String]
object D extends CC[Double]
object B extends CC[Boolean]
val jsonString =
"""
{
"languages": [{
"name": "English",
...