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What is the difference between map and flatMap and a good use case for each?
...ark-shell session:
First, some data - two lines of text:
val rdd = sc.parallelize(Seq("Roses 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 examp...
What is the difference between compile and link function in angularjs
...on this for a couple of days, and I feel that a bit more explanation is in order.
Basically, the docs mention that the separation is largely a performance enhancement. I would reiterate that the compile phase is mainly used when you need to modify the DOM BEFORE the sub-elements themselves are comp...
How to create a self-signed certificate with OpenSSL
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For anyone else using this in automation, here's all of the common parameters for the subject: -subj "/C=US/ST=Oregon/L=Portland/O=Company Name/OU=Org/CN=www.example.com"
– Alex S
Jun 5 '15 at 18:13
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How do I make a textbox that only accepts numbers?
... only accept integer values. In the past I've done this kind of validation by overloading the KeyPress event and just removing characters which didn't fit the specification. I've looked at the MaskedTextBox control but I'd like a more general solution that could work with perhaps a regular expressio...
Enable access control on simple HTTP server
...at clearly don't care about python or SimpleHTTPServer, which is confirmed by upvotes. It's not because it's not helpful to you that it is for everybody. There are good reasons to not like both Node and Python as well. Things like leftpad/bad publish/bad git usage seems totally unrelated to me.
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Have a reloadData for a UITableView animate when changing
...the modes I have a different number of sections and cells per section. Ideally, it would do some cool animation when the table grows or shrinks.
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What is the difference between functional and non functional requirement? [closed]
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A system must send an email whenever a certain condition is met (e.g. an order is placed, a customer signs up, etc).
A related non-functional requirement for the system may be:
Emails should be sent with a latency of no greater than 12 hours from such an activity.
The functional requirement...
Can I force a page break in HTML printing?
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Add a CSS class called "pagebreak" (or "pb"), like so:
@media print {
.pagebreak { page-break-before: always; } /* page-break-after works, as well */
}
Then add an empty DIV tag (or any block element that generates a box) where you wan...
How do I remove diacritics (accents) from a string in .NET?
I'm trying to convert some strings that are in French Canadian and basically, I'd like to be able to take out the French accent marks in the letters while keeping the letter. (E.g. convert é to e , so crème brûlée would become creme brulee )
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Web API Put Request generates an Http 405 Method Not Allowed error
Here's the call to the PUT method on my Web API - the third line in the method (I am calling the Web API from an ASP.NET MVC front end):
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