大约有 48,000 项符合查询结果(耗时:0.0782秒) [XML]
Difference between JVM and HotSpot?
...
answered May 15 '13 at 15:05
Edwin DalorzoEdwin Dalorzo
66.6k2525 gold badges129129 silver badges187187 bronze badges
...
Why do we use $rootScope.$broadcast in AngularJS?
...|
edited Dec 29 '16 at 13:09
A J A Y
46011 gold badge55 silver badges1818 bronze badges
answered Apr 17 ...
+ operator for array in PHP?
...' => 'baz'];
print_r($array1 + $array2);
You will get
Array
(
[0] => one // preserved from $array1 (left-hand array)
[1] => two // preserved from $array1 (left-hand array)
[foo] => bar // preserved from $array1 (left-hand array)
[2] => five // added from $arr...
Finding the index of an item in a list
...n give index a hint. For instance, in this snippet, l.index(999_999, 999_990, 1_000_000) is roughly five orders of magnitude faster than straight l.index(999_999), because the former only has to search 10 entries, while the latter searches a million:
>>> import timeit
>>> timeit.ti...
Visually managing MongoDB documents and collections [closed]
... (Core version is free for personal and non-commercial use). Last commit: 2017-Jul-24
Robo 3T – acquired by Studio 3T. A shell-centric cross-platform open source MongoDB management tool. Shell-related features only, e.g. multiple shells and results, autocomplete. No export/ import or other feature...
Create an array with same element repeated multiple times
...
You can do it like this:
function fillArray(value, len) {
if (len == 0) return [];
var a = [value];
while (a.length * 2 <= len) a = a.concat(a);
if (a.length < len) a = a.concat(a.slice(0, len - a.length));
return a;
}
It doubles the array in each iteration, so it can create a ...
Erlang's 99.9999999% (nine nines) reliability
Erlang was reported to have been used in production systems for over 20 years with an uptime percentage of 99.9999999%.
4 ...
PHP multidimensional array search by value
...ll;
}
This will work. You should call it like this:
$id = searchForId('100', $userdb);
It is important to know that if you are using === operator compared types have to be exactly same, in this example you have to search string or just use == instead ===.
Based on angoru answer. In later versi...
Double not (!!) operator in PHP
...rrays, etc.) you will get the boolean value TRUE, and for any false value (0, 0.0, NULL, empty strings or empty arrays) you will get the boolean value FALSE.
It is functionally equivalent to a cast to boolean:
return (bool)$row;
...
How to replace (or strip) an extension from a filename in Python?
...hat you want.
import os
print os.path.splitext('/home/user/somefile.txt')[0]+'.jpg'
share
|
improve this answer
|
follow
|
...
