大约有 15,461 项符合查询结果（耗时：0.0218秒） [XML]
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
|
...
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
|
...
Can you test google analytics on a localhost address?
I have to test out my new GA account on my local machine.
12 Answers
12
...
How to pass the -D System properties while testing on Eclipse?
...n by default, so you don't have to manually enter this repeatedly for many tests?
– Stewart
Mar 28 '16 at 22:24
add a comment
|
...
Running Internet Explorer 6, Internet Explorer 7, and Internet Explorer 8 on the same machine
Like everyone else, I need to test my code on Internet Explorer 6 and Internet Explorer 7. Now Internet Explorer 8 has some great tools for developer, which I'd like to use. I'd also like to start testing my code with Internet Explorer 8, as it will soon be released.
...