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Execute a terminal command from a Cocoa app
...d NSFileHandle are used to redirect the standard output of the task.
For more detailed information on interacting with the operating system from within your Objective-C application, you can see this document on Apple's Development Center: Interacting with the Operating System.
Edit: Included fix...
Altering a column: null to not null
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How can I detect if a selector returns null?
... return this.length !== 0;
}
Used like:
$("#notAnElement").exists();
More explicit than using length.
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Using GCC to produce readable assembly?
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If you compile with debug symbols, you can use objdump to produce a more readable disassembly.
>objdump --help
[...]
-S, --source Intermix source code with disassembly
-l, --line-numbers Include line numbers and filenames in output
objdump -drwC -Mintel is nice:
-r s...
How do I replace text inside a div element?
...why textContent is a superior method to innerHTML: it's faster, safer, and more appropriate when not deliberately trying to insert HTML markup.
– CertainPerformance
Apr 16 '19 at 0:00
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How to delete duplicate lines in a file without sorting it in Unix?
...rtant caveat here: if you need to do this for multiple files, and you tack more files on the end of the command, or use a wildcard… the 'seen' array will fill up with duplicate lines from ALL the files. If you instead want to treat each file independently, you'll need to do something like for f in...
Nginx not picking up site in sites-enabled?
... May be a problem with an incorrect path in the relative link more than it being a relative link at all. For example, if your link doesn't start with ../ to traverse up one directory, then enter sites-available. If you can cat the symlink and get output, Nginx should read it also as @Ha...
Check list of words in another string [duplicate]
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Group by in LINQ
...ere in the projection (p.car in this case) present for the given key.
For more on how GroupBy works, see my Edulinq post on the topic.
(I've renamed PersonID to PersonId in the above, to follow .NET naming conventions.)
Alternatively, you could use a Lookup:
var carsByPersonId = persons.ToLookup...
Activity restart on rotation Android
...d and used only as a last-resort. Please read Handling Runtime Changes for more information about how to properly handle a restart due to a configuration change. In lieu, to persist data across rotation events, they seem to prefer using the onSaveInstanceState Bundle; or as @Jon-O mentions, onRetai...