大约有 15,490 项符合查询结果（耗时：0.0203秒） [XML]
Passing properties by reference in C#
...
void Main()
{
var person = new Person();
person.Name = GetString("test", person.Name);
Debug.Assert(person.Name == "test");
}
2. Delegate
void GetString(string input, Action<string> setOutput)
{
if (!string.IsNullOrEmpty(input))
{
setOutput(input);
}
}
void...
Handling colon in element ID with jQuery
We are not able to access the div element with ID "test: abc" in JS code using jQuery.
9 Answers
...
Plotting two variables as lines using ggplot2 on the same graph
...all number of variables, you can build the plot manually yourself:
ggplot(test_data, aes(date)) +
geom_line(aes(y = var0, colour = "var0")) +
geom_line(aes(y = var1, colour = "var1"))
share
|
...
What’s the difference between ScalaTest and Scala Specs unit test frameworks?
Both are BDD (Behavior Driven Development) capable unit test frameworks for Scala written in Scala. And Specs is built upon may also involve the ScalaTest framework. But what does Specs offer ScalaTest doesn't? What are the differences?
...
Test if a variable is set in bash when using “set -o nounset”
...
echo 'empty but defined'
else
echo 'unset'
fi
}
Test:
$ unset WHATEVER
$ check
unset
$ WHATEVER=
$ check
empty but defined
$ WHATEVER=' '
$ check
not empty
share
|
imp...
Delete local Git branches after deleting them on the remote repo
...es the delete.
For example:
someUsr@someHost:~/repo$ git branch -a
basic-testing
integration-for-tests
* master
origin
playground-for-tests
test-services
remotes/origin/HEAD -> origin/master
remotes/origin/basic-testing
remotes/origin/master
remotes/origin/test-services
someUsr@someHost:~/repo...
Is null check needed before calling instanceof?
...y good question indeed. I just tried for myself.
public class IsInstanceOfTest {
public static void main(final String[] args) {
String s;
s = "";
System.out.println((s instanceof String));
System.out.println(String.class.isInstance(s));
s = null;
...
PostgreSQL: Difference between text and varchar (character varying)
...er varchar – because it has distinct name
The article does detailed testing to show that the performance of inserts and selects for all 4 data types are similar. It also takes a detailed look at alternate ways on constraining the length when needed. Function based constraints or domains provi...
Fastest way to determine if an integer is between two integers (inclusive) with known sets of values
...re a faster way than x >= start && x <= end in C or C++ to test if an integer is between two integers?
6 An...
When to use setAttribute vs .attribute= in JavaScript?
...use setAttribute for non-standard attributes.
Example:
node.className = 'test'; // works
node.frameborder = '0'; // doesn't work - non standard attribute
node.setAttribute('frameborder', '0'); // works
share
|
...