大约有 40,000 项符合查询结果（耗时：0.0692秒） [XML]
Sort a list by multiple attributes?
... how, you can wrap your criteria (functions) in parenthesis:
s = sorted(my_list, key=lambda i: ( criteria_1(i), criteria_2(i) ), reverse=True)
share
|
improve this answer
|
...
Can you resolve an angularjs promise before you return it?
...
I cant describe with words how happy Im, you saved me so much time h.coates!
– rilar
Apr 2 '14 at 10:33
...
What does -D_XOPEN_SOURCE do/mean?
... the gcc man page, but did not find this specific option. I did find XOPEN_SOURCE , but there was little explanation of what it does.
...
Kotlin secondary constructor
...in with constructor but you need to skip default constructor class AuthLog(_data: String)
class AuthLog {
constructor(_data: String): this(_data, -1)
constructor(_numberOfData: Int): this("From count ", _numberOfData)
private constructor(_data: String, _numberOfData: Int)
}
For mo...
$_POST vs. $_SERVER['REQUEST_METHOD'] == 'POST'
Some guy called one of my Snipplr submissions "crap" because I used if ($_SERVER['REQUEST_METHOD'] == 'POST') instead of if ($_POST)
...
Best way to check if a URL is valid
...
You can use a native Filter Validator
filter_var($url, FILTER_VALIDATE_URL);
Validates value as URL (according to » http://www.faqs.org/rfcs/rfc2396), optionally with required components. Beware a valid URL may not specify the HTTP protocol http:// so further val...
Error handling in Bash
...up() {
rm -f "${tempfiles[@]}"
}
trap cleanup 0
error() {
local parent_lineno="$1"
local message="$2"
local code="${3:-1}"
if [[ -n "$message" ]] ; then
echo "Error on or near line ${parent_lineno}: ${message}; exiting with status ${code}"
else
echo "Error on or near line ${pare...
How to mount a host directory in a Docker container
... can you have both ADD . and -v volume mount at same time. using default app_dir if not specify a host mount?
– alexzg
May 5 '14 at 5:02
...
Yii2 data provider default sorting
...g instructions given by end users (through the sort configuration) will be appended to the existing orderBy clause. Any existing limit and offset clauses will be overwritten by the pagination request from end users (through the pagination configuration).
You can detail learn from
Yii2 Guide of Da...
target=“_blank” vs. target=“_new”
What's the difference between <a target="_new"> and <a target="_blank"> and which should I use if I just want to open a link in a new tab/window?
...