大约有 44,515 项符合查询结果（耗时：0.0455秒） [XML]
Is there a better way to do optional function parameters in JavaScript? [duplicate]
...follow
|
edited Mar 9 '15 at 8:56
answered Sep 29 '08 at 14:30
...
Polymorphism in C++
...m
To understand polymorphism - as the term is used in Computing Science - it helps to start from a simple test for and definition of it. Consider:
Type1 x;
Type2 y;
f(x);
f(y);
Here, f() is to perform some operation and is being given values x and y as inputs.
To exhibit po...
How do I associate a Vagrant project directory with an existing VirtualBox VM?
Somehow my Vagrant project has disassociated itself from its VirtualBox VM, so that when I vagrant up Vagrant will import the base-box and create a new virtual machine.
...
Unnecessary curly braces in C++?
... a colleague today I saw a peculiar thing. He had surrounded his new code with curly braces like this:
14 Answers
...
Using boolean values in C
...#define false 0
Explanation
Option 1 will work only if you use C99 and it's the "standard way" to do it. Choose this if possible.
Options 2, 3 and 4 will have in practice the same identical behavior. #2 and #3 don't use #defines though, which in my opinion is better.
If you are undecided, go w...
Quickly reading very large tables as dataframes
...s a dataframes in R. read.table() has a lot of convenient features, but it seems like there is a lot of logic in the implementation that would slow things down. In my case, I am assuming I know the types of the columns ahead of time, the table does not contain any column headers or row names, an...
Are HTTPS URLs encrypted?
...follow
|
edited Nov 28 '16 at 2:53
Community♦
111 silver badge
answered Jan 31 '09 at 2...
To prevent a memory leak, the JDBC Driver has been forcibly unregistered
I am getting this message when I run my web application. It runs fine but I get this message during shutdown.
14 Answers
...
What is unit testing and how do you do it? [duplicate]
What is unit testing?
What Makes a Good Unit Test?
New to Unit Testing
Unit Testing - definitions
Learning Unit Testing
How to properly mock and unit test
Unit Testing: Beginner Questions
And many more ...
Also, Google for site:stackoverflow.com "how do you" unit-test...
Understanding ibeacon distancing
Trying to grasp a basic concept of how distancing with ibeacon (beacon/ Bluetooth-lowenergy/BLE) can work. Is there any true documentation on how far exactly an ibeacon can measure. Lets say I am 300 feet away...is it possible for an ibeacon to detect this?
...