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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
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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
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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
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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.
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Get nth character of a string in Swift programming language
...
You will need to add this String extension to your project (it's fully tested):
extension String {
var length: Int {
return count
}
subscript (i: Int) -> String {
return self[i ..< i + 1]
}
func substring(fromIndex: Int) -> String {
return...
Pickle or json?
...
The benchmark cited by @mac only tests strings. I tested str, int and float seperately and found out that json is slower than cPickle with float serialization, but faster with float unserialization. For int (and str), json is faster both ways. Data and code:...
@RunWith(MockitoJUnitRunner.class) vs MockitoAnnotations.initMocks(this)
While writing a new jUnit4 test, I'm wondering whether to use @RunWith(MockitoJUnitRunner.class) or MockitoAnnotations.initMocks(this) .
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