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When to use self over $this?
In PHP 5, what is the difference between using self and $this ?
23 Answers
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How does delete[] know it's an array?
...eed the delete[] syntax at all? Why can't a single delete form be used to handle all deletes?
The answer to this goes back to C++'s roots as a C-compatible language (which it no longer really strives to be.) Stroustrup's philosophy was that the programmer should not have to pay for any features tha...
Remove the bottom divider of an android ListView
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Just add
android:footerDividersEnabled="false"
to your ListView description
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How to initialise memory with new operator in C++?
I'm just beginning to get into C++ and I want to pick up some good habits. If I have just allocated an array of type int with the new operator, how can I initialise them all to 0 without looping through them all myself? Should I just use memset ? Is there a “C++” way to do it?
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Replacing NAs with latest non-NA value
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@BallpointBen 's comment is important and should be included in the answer. Thanks!
– Ben
Mar 6 at 16:43
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Multiple linear regression in Python
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Here is a little work around that I created. I checked it with R and it works correct.
import numpy as np
import statsmodels.api as sm
y = [1,2,3,4,3,4,5,4,5,5,4,5,4,5,4,5,6,5,4,5,4,3,4]
x = [
[4,2,3,4,5,4,5,6,7,4,8,9,8,8,6,6,5,5,5,5,5,5,5],
[4,1,2,3,4,5,6,7,5,8,7,8,7,8,7,8,7,...
How can I maintain fragment state when added to the back stack?
...return to FragmentA (by pressing back), a totally new FragmentA is created and the state it was in is lost. I get the feeling I'm after the same thing as this question, but I've included a complete code sample to help root out the issue:
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Jackson and generic type reference
...is a well-known problem with Java type erasure: T is just a type variable, and you must indicate actual class, usually as Class argument. Without such information, best that can be done is to use bounds; and plain T is roughly same as 'T extends Object'. And Jackson will then bind JSON Objects as Ma...
Bootstrap carousel multiple frames at once
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Updated 2019...
Bootstrap 4
The carousel has changed in 4.x, and the multi-slide animation transitions can be overridden like this...
.carousel-inner .carousel-item-right.active,
.carousel-inner .carousel-item-next {
transform: translateX(33.33%);
}
.carousel-inner .carousel-item-l...
Applying a function to every row of a table using dplyr?
...it useful to use adply for scalar functions that I have to apply to each and every row.
7 Answers
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