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Docker build “Could not resolve 'archive.ubuntu.com'” apt-get fails to install anything
... 1: 8.8.8.8
If the command appears to hang, but eventually spits out the error "can't resolve 'google.com'", then you have the same problem as me.
The nslookup command queries the DNS server 8.8.8.8 in order to turn the text address of 'google.com' into an IP address. Ironically, 8.8.8.8 is Googl...
How can I efficiently download a large file using Go?
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I'll assume you mean download via http (error checks omitted for brevity):
import ("net/http"; "io"; "os")
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out, err := os.Create("output.txt")
defer out.Close()
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resp, err := http.Get("http://example.com/")
defer resp.Body.Close()
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n, err := io.Copy(out,...
Get the first element of an array
...hift(array_slice($array, 0, 1));
With PHP 5.4+ (but might cause an index error if empty):
array_values($array)[0];
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Placeholder Mixin SCSS/CSS
... @RickM It was reverted because the modifications you made don't compile (error: Base-level rules cannot contain the parent-selector-referencing character '&'.). This creates the exact output the OP is looking for, the answer you claim is "correct" does not.
– cimmanon
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Best data type to store money values in MySQL
... integer gives certainty that your application will not incur that kind of error. This may not be the best solution though. I arrived at this page while researching solutions and I'm not done yet.
– Gary Ott
Jun 2 '17 at 9:00
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Defining a variable with or without export
...n. No name or value is ever copied back from the subprocess.
A common error is to place a space around the equal sign:
$ export FOO = "bar"
bash: export: `=': not a valid identifier
Only the exported variable (B) is seen by the subprocess:
$ A="Alice"; export B="Bob"; echo "echo A is \$A. ...
How to increase request timeout in IIS?
...anged debug to false days ago and didn't associate it with all the timeout errors I'd been receiving. Now I know.
– Doug S
Oct 31 '15 at 4:45
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What is an optional value in Swift?
...can be nil
If you try to set a non-optional variable to nil, you'll get an error.
var red: String = "Red"
red = nil // error: nil cannot be assigned to type 'String'
Another way of looking at optionals is as a complement to normal Swift variables. They are a counterpart to a variable which is guara...
How do I get the localhost name in PowerShell?
... On Windows 10 Enterprise, env:COMPUTERNAME produced the following error: env:COMPUTERNAME : The term 'env:COMPUTERNAME' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is c...