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How can I exclude all “permission denied” messages from “find”?
...opoldHertz준영: If you don't want to output to an external file, just do more plumbing: { find . 3>&2 2>&1 1>&3 | grep -v 'Permission denied' >&3; } 3>&2 2>&1
– gniourf_gniourf
Dec 25 '16 at 22:12
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How to add spacing between UITableViewCell
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PHP: How to remove specific element from an array?
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Match linebreaks - \n or \r\n?
...explanation about \r and \n I have to refer to this question, which is far more complete than I will post here: Difference between \n and \r?
Long story short, Linux uses \n for a new-line, Windows \r\n and old Macs \r. So there are multiple ways to write a newline. Your second tool (RegExr) does f...
How do I catch a PHP fatal (`E_ERROR`) error?
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Remove element by id
...nts").remove();
Note: this solution doesn't work for IE 7 and below. For more info about extending the DOM read this article.
EDIT: Reviewing my answer in 2019, node.remove() has come to the rescue and can be used as follows (without the polyfill above):
document.getElementById("my-element").rem...
Core Data: Quickest way to delete all instances of an entity
...tor executeRequest:delete withContext:myContext error:&deleteError];
More information about batch deletions can be found in the "What's New in Core Data" session from WWDC 2015 (starting at ~14:10).
iOS 8 and earlier:
Fetch 'em all and delete 'em all:
NSFetchRequest *allCars = [[NSFetchRequ...
Difference between single and double square brackets in Bash
... expands to [ a b = 'a b' ]
x='*'; [ $x = 'a b' ]: syntax error if there's more than one file in the current directory.
x='a b'; [ "$x" = 'a b' ]: POSIX equivalent
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[[ ab = a? ]]: true, because it does pattern matching (* ? [ are magic). Does not glob expand to files in current directory.
[ ab =...
ImportError: No module named apiclient.discovery
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Algorithm to return all combinations of k elements from n
... The second place, with one change {1,3,4} has one change but accounts for more change since it's in the second place (proportional to the number of elements in the original set).
The method I've described is a deconstruction, as it seems, from set to the index, we need to do the reverse – which ...