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Difference between String replace() and replaceAll()
...g 's replace() and replaceAll() methods,
other than later uses regex? For simple substitutions like, replace . with / ,
is there any difference?
...
Get the current script file name
...u the .php file that line is in, you actually want $_SERVER['SCRIPT_NAME'] for the currently running top-level script (that which was invoked by the web server or directly on the command line)
– Drew Stephens
Apr 28 '11 at 17:34
...
How can mixed data types (int, float, char, etc) be stored in an array?
... is used to hold the choice of which member of the union is should be used for each array element. So if you want to store an int in the first element, you would do:
my_array[0].type = is_int;
my_array[0].val.ival = 3;
When you want to access an element of the array, you must first check the type...
How do I use vimdiff to resolve a git merge conflict?
...tively
use z o while on a fold to open it, if you want to see more context
for each diff, as per @chepner's answer, you can either get the code from a local, remote or base version, or edit it and redo as you see fit
to get it from the local version, use :diffget LO
from remote: :diffget RE
from b...
How to shuffle a std::vector?
I am looking for a generic, reusable way to shuffle a std::vector in C++. This is how I currently do it, but I think it's not very efficient because it needs an intermediate array and it needs to know the item type (DeckCard in this example):
...
Which SQL query is faster? Filter on Join criteria or Where clause?
...it reduces the result set at the soonest possible moment, but I don't know for sure.
9 Answers
...
Forced naming of parameters in Python
... may only be passed used keyword arguments.
>>> def foo(pos, *, forcenamed):
... print(pos, forcenamed)
...
>>> foo(pos=10, forcenamed=20)
10 20
>>> foo(10, forcenamed=20)
10 20
>>> foo(10, 20)
Traceback (most recent call last):
File "<stdin>", line 1...
How to track down a “double free or corruption” error
...n set this from gdb by using the set environment MALLOC_CHECK_ 2 command before running your program; the program should abort, with the free() call visible in the backtrace.
see the man page for malloc() for more information
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Quickest way to convert a base 10 number to any base in .NET?
...n array as buffer instead of
/// string concatenation. This is faster for return values having
/// a length > 1.
/// </summary>
public static string IntToStringFast(int value, char[] baseChars)
{
// 32 is the worst cast buffer size for base 2 and int.MaxValue
...
Using mixins vs components for code reuse in Facebook React
...s Are Dead. Long Live Composition
At first, I tried to use subcomponents for this and extract FormWidget and InputWidget. However, I abandoned this approach halfway because I wanted a better control over generated inputs and their state.
Two articles that helped me most:
Thinking in React mad...