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How does one remove an image in Docker?
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Try docker rmi node. That should work.
Seeing all created containers is as simple as docker ps -a.
To remove all existing containers (not images!) run docker rm $(docker ps -aq)
share
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Java how to replace 2 or more spaces with single space in string and delete leading and trailing spa
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Try this:
String after = before.trim().replaceAll(" +", " ");
See also
String.trim()
Returns a copy of the string, with leading and trailing whitespace omitted.
regular-expressions.info/Repetition
No trim() regex
It's also possible to do this with just one re...
Performance of Find() vs. FirstOrDefault() [duplicate]
...ject an anonmyous data item just for compilation
List<\u003C\u003Ef__AnonymousType0<string>> source = Enumerable.ToList(Enumerable.Select(Enumerable.Range(0, 1000000), i =>
{
var local_0 = new
{
Name = Guid.NewGuid().ToString()
};
return local_...
How do I globally configure RSpec to keep the '--color' and '--format specdoc' options turned on
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One can also use a spec_helper.rb file in all projects. The file should include the following:
RSpec.configure do |config|
# Use color in STDOUT
config.color = true
# Use color not only in STDOUT but also in pagers and files
config.tty = true
# Use the s...
Dictionaries and default values
...collections import defaultdict
a = defaultdict(lambda: "default", key="some_value")
a["blabla"] => "default"
a["key"] => "some_value"
You can pass any ordinary function instead of lambda:
from collections import defaultdict
def a():
return 4
b = defaultdict(a, key="some_value")
b['absent...
Reading an Excel file in PHP [closed]
... to make it compatible with recent PHP 5 versions: pastebin.com/YNUZANcs All credits go to the original developers.
– Lars Gyrup Brink Nielsen
Sep 9 '13 at 13:32
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catch all unhandled exceptions in ASP.NET Web Api
How do I catch all unhandled exceptions that occur in ASP.NET Web Api so that I can log them?
5 Answers
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Changing the cursor in WPF sometimes works, sometimes doesn't
...deCursor:
Mouse.OverrideCursor = Cursors.Wait;
try
{
// do stuff
}
finally
{
Mouse.OverrideCursor = null;
}
This overrides the cursor for your application rather than just for a part of its UI, so the problem you're describing goes away.
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How do I remove an item from a stl vector with a certain value?
...n for stl vector, and noticed there was no method on the vector class that allowed the removal of an element with a certain value. This seems like a common operation, and it seems odd that there's no built in way to do this.
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Turn a simple socket into an SSL socket
...()
{
SSL_load_error_strings();
SSL_library_init();
OpenSSL_add_all_algorithms();
}
void DestroySSL()
{
ERR_free_strings();
EVP_cleanup();
}
void ShutdownSSL()
{
SSL_shutdown(cSSL);
SSL_free(cSSL);
}
Now for the bulk of the functionality. You may want to add a while lo...