大约有 47,000 项符合查询结果(耗时:0.0478秒) [XML]
while (1) vs. while(True) — Why is there a difference (in python 2 bytecode)?
...hat the compiler would generate the same byte code for while(True): pass and while(1): pass , but this is actually not the case in python2.7.
...
How to exit from PostgreSQL command line utility: psql
What command or short key can I use to exit the PostgreSQL command line utility psql ?
9 Answers
...
What's the fastest way to loop through an array in JavaScript?
...dern browsers:
https://jsben.ch/wY5fo
Currently, the fastest form of loop (and in my opinion the most syntactically obvious).
A standard for-loop with length caching
var i = 0, len = myArray.length;
while (i < len) {
// your code
i++
}
I would say, this is definitely ...
How to unset a JavaScript variable?
...he named reference in what the ECMAScript spec calls "LexicalEnvironment", and the main difference is that LexicalEnvironments are nested - that is a LexicalEnvironment has a parent (what the ECMAScript spec calls "outer environment reference") and when Javascript fails to locate the reference in a ...
find -exec cmd {} + vs | xargs
Which one is more efficient over a very large set of files and should be used?
3 Answers
...
Best way to initialize (empty) array in PHP
...o = [] rather than var foo = new Array() for reasons of object creation and instantiation. I wonder whether there are any equivalences in PHP?
...
In C, how should I read a text file and print all strings
...
The simplest way is to read a character, and print it right after reading:
int c;
FILE *file;
file = fopen("test.txt", "r");
if (file) {
while ((c = getc(file)) != EOF)
putchar(c);
fclose(file);
}
c is int above, since EOF is a negative number, an...
What is the best open XML parser for C++? [duplicate]
...
How about RapidXML? RapidXML is a very fast and small XML DOM parser written in C++. It is aimed primarily at embedded environments, computer games, or any other applications where available memory or CPU processing power comes at a premium. RapidXML is licensed under ...
What is meant by Resource Acquisition is Initialization (RAII)?
...
It's a really terrible name for an incredibly powerful concept, and perhaps one of the number 1 things that C++ developers miss when they switch to other languages. There has been a bit of a movement to try to rename this concept as Scope-Bound Resource Management, though it doesn't seem...
Why use Gradle instead of Ant or Maven? [closed]
...ns one would consider using it would be because of the frustrations of Ant and Maven.
In my experience Ant is often write-only (yes I know it is possible to write beautifully modular, elegant builds, but the fact is most people don't). For any non-trivial projects it becomes mind-bending, and takes...