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Java 8 Iterable.forEach() vs foreach loop
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prev = curr;
}
Can't handle checked exceptions. Lambdas aren't actually forbidden from throwing checked exceptions, but common functional interfaces like Consumer don't declare any. Therefore, any code that throws checked exceptions must wrap them in try-catch or Throwables.propagate(). But ...
How do you do block comments in YAML?
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The syntax differences are subtle and seldom arise in practice: JSON allows extended charactersets like UTF-32, YAML requires a space after separators like comma, equals, and colon while JSON does not, and some non-standard implementations of JSON extend the grammar to include Javascript's /* ...
How does git compute file hashes?
...his to the output of echo 'Hello, World!' | git hash-object --stdin. Optionally you can specify --no-filters to make sure no crlf conversion happens, or specify --path=somethi.ng to let git use the filter specified via gitattributes (also @user420667). And -w to actually submit the blob to .git/obje...
Margin on child element moves parent element
...igns this idea can bite you when you explicitly want a container. This is called a new block formatting context in CSS speak. The overflow or margin trick will give you that.
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Is R's apply family more than syntactic sugar?
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Edit 2:
Regarding the usage of parallel packages for R (e.g. rpvm, rmpi, snow), these do generally provide apply family functions (even the foreach package is essentially equivalent, despite the name). Here's a simple example of the sapply function in snow:
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How can I clear an HTML file input with JavaScript?
...d the file input element to this new form and reset it. This way works for all browsers.
I wrote a javascript function. demo: http://jsbin.com/muhipoye/1/
function clearInputFile(f){
if(f.value){
try{
f.value = ''; //for IE11, latest Chrome/Firefox/Opera...
}catch(...
How can I save an image with PIL?
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hey thanks very much. it works perfect now! now all i have to do is understand all the steps but that wont be too bad. thank you so much for the help
– user1999274
Jan 23 '13 at 4:48
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How to clean project cache in Intellij idea like Eclipse's clean?
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Depending on the version you are running. It is basically the same just go to
File -> Invalidate caches, then restart Intellij
or
File -> Invalidate caches / Restart
The main difference is that in older versions you had to manually restart as cache files are not removed...
How do I show my global Git configuration?
I'd like to show all configured Git sections.
12 Answers
12
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Is there an equivalent of lsusb for OS X
This question seems to be all over google, but the answers all point to using System Profiler. That's nice, but with System Profiler all you get is something that looks like this:
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