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What is the difference between save and export in Docker?
...r a couple of days and I already made some images (which was really fun!). Now I want to persist my work and came to the save and export commands, but I don't fully understand them.
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How to convert R Markdown to PDF?
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Updated Answer (10 Feb 2013)
rmarkdown package:
There is now an rmarkdown package available on github that interfaces with Pandoc.
It includes a render function. The documentation makes it pretty clear how to convert rmarkdown to pdf among a range of other formats. This includes i...
Removing App ID from Developer Connection
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Update: You can now remove an App ID (as noted by @Guru in the comments).
In the past, this was not possible: I had the same problem, and the folks at Apple replied that they will leave all of the App ID you create associated to your login...
How to use clock() in C++
...d::chrono::high_resolution_clock Clock;
int main()
{
auto t1 = Clock::now();
auto t2 = Clock::now();
std::cout << "Delta t2-t1: "
<< std::chrono::duration_cast<std::chrono::nanoseconds>(t2 - t1).count()
<< " nanoseconds" << std:...
Animate scrollTop not working in firefox
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var element = ( html.scrollTop === newY ) ? 'html' : 'body';
// now reset back to the starting position
window.scrollTo(0, startingY);
return element;
}
// store the element selector name in a global var -
// we'll use this as the selector for our page scrolling animation.
scrol...
What is std::promise?
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I understand the situation a bit better now (in no small amount due to the answers here!), so I thought I add a little write-up of my own.
There are two distinct, though related, concepts in C++11: Asynchronous computation (a function that is called somewhere el...
How to check for a valid Base64 encoded string
...ing. I updated my question with an implementation of the solution let me know if you see any problems with it.
– Chris Mullins
Jun 10 '11 at 18:05
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Is there any JSON Web Token (JWT) example in C#?
...Time(1970,1,1,0,0,0,0, DateTimeKind.Utc);
var issueTime = DateTime.Now;
var iat = (int)issueTime.Subtract(utc0).TotalSeconds;
var exp = (int)issueTime.AddMinutes(55).Subtract(utc0).TotalSeconds; // Expiration time is up to 1 hour, but lets play on safe side
var payl...
How to concatenate properties from multiple JavaScript objects
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This is one of the best I could say. Since E6 is now mostly used, Object.assign is the best answer.
– Vimalraj Selvam
Nov 22 '16 at 10:53
6
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How can I validate a string to only allow alphanumeric characters in it?
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I detest regular expressions. I know that I will never remember the syntax. Even if I study it, there will come a time soon when it's all forgotten again.
– Sentinel
Jan 14 '15 at 17:26
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