大约有 35,450 项符合查询结果(耗时:0.0491秒) [XML]
How to get jQuery dropdown value onchange event
...
answered Nov 12 '13 at 7:00
power_scriptorpower_scriptor
2,94411 gold badge1212 silver badges1616 bronze badges
...
Does const mean thread-safe in C++11?
...ue...
This is what the Standard Language has to say on thread-safety:
[1.10/4]
Two expression evaluations conflict if one of them modifies a memory location (1.7) and the other one accesses or modifies the same memory location.
[1.10/21]
The execution of a program contains a data race if it contain...
MySQL - Get row number on select
...
Take a look at this.
Change your query to:
SET @rank=0;
SELECT @rank:=@rank+1 AS rank, itemID, COUNT(*) as ordercount
FROM orders
GROUP BY itemID
ORDER BY ordercount DESC;
SELECT @rank;
The last select is your count.
...
Programmatically selecting text in an input field on iOS devices (mobile Safari)
...
10 Answers
10
Active
...
Is == in PHP a case-sensitive string comparison?
...
101
Yes, == is case sensitive.
You can use strcasecmp for case insensitive comparison
...
Enumerable.Empty() equivalent for IQueryable
...
206
Maybe:
Enumerable.Empty<T>().AsQueryable();
...
bower automatically update bower.json
I run the following commands using bower 1.0.0:
1 Answer
1
...
How do I get cURL to not show the progress bar?
...p://google.com > temp.html
works for curl version 7.19.5 on Ubuntu 9.10 (no progress bar). But if for some reason that does not work on your platform, you could always redirect stderr to /dev/null:
curl http://google.com 2>/dev/null > temp.html
...
What do the return values of node.js process.memoryUsage() stand for?
...the Heap
heapUsed: Heap actually Used
Ref: http://apmblog.dynatrace.com/2015/11/04/understanding-garbage-collection-and-hunting-memory-leaks-in-node-js/
share
|
improve this answer
|
...
What's the difference between echo, print, and print_r in PHP?
...s you have in your variables. Consider this test program:
$values = array(0, 0.0, false, '');
var_dump($values);
print_r ($values);
With print_r you can't tell the difference between 0 and 0.0, or false and '':
array(4) {
[0]=>
int(0)
[1]=>
float(0)
[2]=>
bool(false)
[3]=...