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Why is there an injected class name?
...class name can be used without a template argument list, e.g. using simply Foo instead of the full template-id Foo<blah, blah, blah>, so it's easy to refer to the current instantiation. See DR 176 for a change between C++98 and C++03 that clarified that.
The idea of the injected class name wa...
Allowed characters in Linux environment variable names
... by ConfigMap
test.yaml
apiVersion: v1
kind: ConfigMap
metadata:
name: foo-config
data:
"xx.ff-bar": "1234"
---
apiVersion: v1
kind: Pod
metadata:
name: foobar
spec:
containers:
- name: test-container
image: k8s.gcr.io/busybox
command: [ "/bin/sh", "-c", "env" ]
envF...
Boolean vs boolean in Java
...-definable classes using another keyword class)
or in other words
boolean foo = true;
vs.
Boolean foo = true;
The first "thing" (type) can not be extended (subclassed) and not without a reason. Effectively Java terminology of primitive and wrapping classes can be simply translated into inline...
Why does X[Y] join of data.tables not allow a full outer join, or a left join?
... in data.table does all that in one step for
you. When you write X[Y,sum(foo*bar)], data.table automatically inspects the j expression to see which columns it uses. It will only subset those columns only; the others are ignored. Memory is only created for the columns the j uses, and Y columns enjo...
How to normalize a path in PowerShell?
...nContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath(".\nonexist\foo.txt") Works with non-existant paths too. "x0n" deserves the credit for this btw. As he notes, it resolves to PSPaths, not flilesystem paths, but if you're using the paths in PowerShell, who cares? stackoverflow.com/que...
Bash script prints “Command Not Found” on empty lines
Every time I run a script using bash scriptname.sh from the command line in Debian, I get Command Not found and then the result of the script.
...
What special characters must be escaped in regular expressions?
...k in the left hand side of a substitution string in sed, namely
sed -e 's/foo\(bar/something_else/'
I tend to just use a simple character class definition instead, so the above expression becomes
sed -e 's/foo[(]bar/something_else/'
which I find works for most regexp implementations.
BTW Char...
jQuery $(document).ready and UpdatePanels?
...get this to work for the life of me. Then I moved it from the head to the footer and it worked. Not positive, but I think it needed to come after the ScriptManager I am using.
– Adam Youngers
Sep 8 '11 at 22:45
...
How to clear https proxy setting of NPM?
How can I clear the previous ssl proxy setting of NPM?
well, I search a lot, but all post I got is mainly about how to set proxy in corporate network.
...
Java “params” in method signature?
...gular parameter, but with an ellipsis ("...") after the type:
public void foo(Object... bar) {
for (Object baz : bar) {
System.out.println(baz.toString());
}
}
The vararg parameter must always be the last parameter in the method signature, and is accessed as if you received an arr...