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Is double square brackets [[ ]] preferable over single square brackets [ ] in Bash?
..., I heard ksh supports it too). For example, you can do
[[ -e $b ]]
to test whether a file exists. But with [, you have to quote $b, because it splits the argument and expands things like "a*" (where [[ takes it literally). That has also to do with how [ can be an external program and receives i...
Delete topic in Kafka 0.8.1.1
I need to delete the topic test in Apache Kafka 0.8.1.1.
14 Answers
14
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Advantages of using prototype, vs defining methods straight in the constructor? [duplicate]
...// Create 2 instances:
var ins1 = new Class(),
ins2 = new Class();
// Test the calc method:
console.log(ins1.calc(1,1), ins2.calc(1,1));
// -> 2, 2
// Change the prototype method
Class.prototype.calc = function () {
var args = Array.prototype.slice.apply(arguments),
res = 0, c;
...
Which is the fastest algorithm to find prime numbers?
Which is the fastest algorithm to find out prime numbers using C++? I have used sieve's algorithm but I still want it to be faster!
...
ExpressJS How to structure an application?
....js application.
focusaurus/express_code_structure is the repo with the latest code for this. Pull requests welcome.
Here's a snapshot of the README since stackoverflow doesn't like just-a-link answers. I'll make some updates as this is a new project that I'll continue updating, but ultimately the...
Python: Checking if a 'Dictionary' is empty doesn't seem to work
...er using the first way only though. The other two ways are way too wordy.
test_dict = {}
if not test_dict:
print "Dict is Empty"
if not bool(test_dict):
print "Dict is Empty"
if len(test_dict) == 0:
print "Dict is Empty"
...
Can Visual Studio 2012 be installed side-by-side w/ Visual Studio 2010?
...ng the point of the problem. The problem only exists if you depend on your tests on your development machine to tell you when your application works. If you can test in the environment your customers will use (and I think most developers are in this position), then you don't have this problem. If yo...
How Do I Convert an Integer to a String in Excel VBA?
...ng was not found.
But adding an empty string to the value works, too.
Dim Test As Integer, Test2 As Variant
Test = 10
Test2 = Test & ""
//Test2 is now "10" not 10
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How do you calculate log base 2 in Java for integers?
...g a more general task - trying to implement int log(int x, int base):
The testing code:
static int pow(int base, int power) {
int result = 1;
for (int i = 0; i < power; i++)
result *= base;
return result;
}
private static void test(int base, int pow) {
int x = pow(base,...
remove_if equivalent for std::map
...e_if(container, []( item_type& item ) {
return /* insert appropriate test */;
});
Second example (allows you to pass in a test value):
// 'test_value' is value that you might inject into your predicate.
// 'property' is just used to provide a stand-in test
using stuff::erase_if;
int test_va...