大约有 47,000 项符合查询结果（耗时：0.0547秒） [XML]
Replacement for “rename” in dplyr
...
148
dplyr version 0.3 added a new rename() function that works just like plyr::rename().
df <-...
How does one generate a random number in Apple's Swift language?
...
Swift 4.2+
Swift 4.2 shipped with Xcode 10 introduces new easy-to-use random functions for many data types.
You can call the random() method on numeric types.
let randomInt = Int.random(in: 0..<6)
let randomDouble = Double.random(in: 2.71828...3.14159)
let rand...
How do I check in JavaScript if a value exists at a certain array index?
...
18 Answers
18
Active
...
How to verify a method is called two times with mockito verify()
...
1 Answer
1
Active
...
Create a custom View by inflating a layout?
...
answered Dec 1 '10 at 20:48
chubbsondubschubbsondubs
33.9k2222 gold badges9595 silver badges132132 bronze badges
...
difference between #if defined(WIN32) and #ifdef(WIN32)
I am compiling my program that will running on linux gcc 4.4.1 C99.
3 Answers
3
...
Get parts of a NSURL in objective-c
...t:
@"%@://%@/%@",
url.scheme,
url.host,
url.pathComponents[1]];
For your example URL, what you seem to want is the protocol, the host and the first path component. (The element at index 0 in the array returned by -[NSString pathComponents] is simply "/", so you'll want the element ...
How to exclude this / current / dot folder from find “type d”
...
197
POSIX 7 solution:
find . ! -path . -type d
For this particular case (.), golfs better than ...
What is a dependency property?
...
|
edited Aug 18 '15 at 14:58
Matt
67.9k2020 gold badges137137 silver badges171171 bronze badges
...