大约有 47,000 项符合查询结果(耗时:0.0597秒) [XML]
Get child node index
...????????
I hypothesize that given an element where all of its children are ordered on the document sequentially, the fastest way should be to do a binary search, comparing the document positions of the elements. However, as introduced in the conclusion the hypothesis is rejected. The more elements y...
CMake output/build directory
...s on how to use it, and wrote some complicated 50 lines of CMake script in order to make a program for 3 different compilers. This probably concludes all my knowledge in CMake.
...
How do I find which rpm package supplies a file I'm looking for?
...age (i.e. it resides in /sbin). However, rpm -qf ... also requires root in order to read rpms from /sbin. Therefore, I propose that the root requirements are functionally equivalent for both methods.
– StockB
Oct 31 '17 at 14:28
...
How can I remove a character from a string using Javascript?
...x + char.length);
char.length is zero. You need to add 1 in this case in order to skip character.
share
|
improve this answer
|
follow
|
...
Importance of varchar length in MySQL table
... Anytime your select query uses a temporary table (group and order by operations, among other things) it will convert varchar(200) to a char(200) and performance will suffer.
– Jamie
Feb 7 '13 at 20:14
...
Position of least significant bit that is set
... i++) {
unsigned int value = nums[i];
// note that order to check indices will depend whether you are on a big
// or little endian machine. This is for little-endian
unsigned char *bytes = (unsigned char *)&value;
if (bytes[0])
...
What is correct HTTP status code when redirecting to a login page?
...
Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
...
BAT file: Open new cmd window and execute a command in there
...
Adding /k between two commands executes both command in order.
Example:
cmd /k echo "hello"
this command will first open command prompt then execute echo "hello" command
share
|
...
PHP $_SERVER['HTTP_HOST'] vs. $_SERVER['SERVER_NAME'], am I understanding the man pages correctly?
...ymfony framework that tries to get the hostname from every way possible in order of best practice:
function get_host() {
if ($host = $_SERVER['HTTP_X_FORWARDED_HOST'])
{
$elements = explode(',', $host);
$host = trim(end($elements));
}
else
{
if (!$host =...
Uncaught SyntaxError: Unexpected token with JSON.parse
...ect.
Your code turns the object into a string (by calling .toString()) in order to try to parse it as JSON text.
The default .toString() returns "[object Object]", which is not valid JSON; hence the error.
share
|
...