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Difference between single and double quotes in Bash
...before being displayed (see the PROMPTING section in the bash manpage). To test this out, try PS1='$X'. You will have no prompt. Then run X=foo and suddenly your prompt is "foo" (had PS1 been evaluated when set instead of displayed you would still have no prompt).
– Adam Batkin...
AngularJS : Why ng-bind is better than {{}} in angular?
...
I wrote a performance test for internal evaluation. It had 2000 entries in an ng repeat and displayed 2 attributes in the object, so 2000x2 bindings. The bindings differ in: First binding was just the binding in a span. The seconds had a binding...
Difference in make_shared and normal shared_ptr in C++
...bout efficiency and concernig time spent on allocation, I made this simple test below, I created many instances through these two ways (one at a time):
for (int k = 0 ; k < 30000000; ++k)
{
// took more time than using new
std::shared_ptr<int> foo = std::make_shared<int> (10)...
Ball to Ball Collision - Detection and Handling
...sonable number of balls lying around on the floor this could save a lot of tests. (Note that you must still check if something hit the stationary ball.)
2) Something that might be worth doing: Divide the screen into a number of zones but the lines should be fuzzy--balls at the edge of a zone are...
UIDevice uniqueIdentifier deprecated - What to do now?
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Based on the link proposed by @moonlight, i did several tests and it seems to be the best solution. As @DarkDust says the method goes to check en0 which is always available.
There are 2 options:
uniqueDeviceIdentifier (MD5 of MAC+CFBundleIdentifier)
and uniqueGlobalDeviceIdentifie...
Is there a way to make a link clickable in the OSX Terminal?
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I tried this: echo "<a href=\'test.com\'>Test</a>" | lynx -use_mouse - stdin This opens lynx, this is not what i want, I want the output directly in my terminal.
– japetheape
Feb 26 '10 at 1:49
...
Password hint font in Android
...y way for solving this problem but each way have pros and cons. Here is my testing
I only face this font problem in some device (list at the end of my answer) when enable input password by
edtPassword.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
If I use and...
What's the best way to check if a String represents an integer in Java?
...n staying in the same method, they aren't bad performers.
public void RunTests()
{
String str = "1234567890";
long startTime = System.currentTimeMillis();
for(int i = 0; i < 100000; i++)
IsInt_ByException(str);
long endTime = System.currentTimeMillis();
Syste...
What is self-documenting code and can it replace well documented code? [closed]
... files larger than 10 MB instead of loop through all files in a directory, test if file size is larger than 10 MB, yield return if true)
his code and documentation is fine, in my opinion. Note that self-documented code does not mean that there should be no comments, but only that there should be n...
C++ : why bool is 8 bits long?
... fast and we need that signal to be as fast as possible."
Well, it was a test to see if I understood the concepts and bits, bytes, and error handling. How easy would it for a bad guy to send out a one bit msg. Or what happens if during transmittion the bit gets flipped the other way.
...