大约有 47,000 项符合查询结果（耗时：0.0501秒） [XML]
When does static class initialization happen?
...
answered Aug 17 '10 at 4:23
Stephen CStephen C
603k8282 gold badges700700 silver badges10591059 bronze badges
...
Using the Swift if let with logical AND operator &&
...r as? UITabBarController where tabBarController.viewControllers.count > 0 {
println("do stuff")
}
This uses the where clause.
Another example, this time casting AnyObject to Int, unwrapping the optional, and checking that the unwrapped optional meets the condition:
if let w = width a...
Convert dmesg timestamp to custom date format
...
answered Dec 15 '12 at 9:01
user180100user180100
...
getViewTypeCount and getItemViewType methods of ArrayAdapter
...
308
These handle the case where you want different types of view for different rows. For instance, ...
How can I add new array elements at the beginning of an array in Javascript?
... not already an array:
const array = [ 3, 2, 1 ]
const newLastElement = 0
// Both of these lines are equivalent:
const newArray1 = array.concat(newLastElement) // [ 3, 2, 1, 0 ]
const newArray2 = array.concat([newLastElement]) // [ 3, 2, 1, 0 ]
...
How can I convert a file pointer ( FILE* fp ) to a file descriptor (int fd)?
...
answered Jul 2 '10 at 16:02
Phil MillerPhil Miller
30.4k1111 gold badges6161 silver badges8585 bronze badges
...
Split a string on whitespace in Go?
...en(words)) // [one two three four] 4
DEMO: http://play.golang.org/p/et97S90cIH
From the docs:
func Fields(s string) []string
Fields splits the string s around each instance of one or more consecutive white space characters, returning an array of substrings of s or an empty list if s contains only ...
Getting output of system() calls in Ruby
...
answered Oct 14 '09 at 0:06
Craig WalkerCraig Walker
42.5k4747 gold badges145145 silver badges198198 bronze badges
...
Responsive image align center bootstrap 3
...yed on tablets, the product images look ugly because of their small size (500x500) and a width of 767 pixels in the browser. I want to put the image in the center of the screen, but for some reason I can not. Who be will help solve the problem?
...
How to use a variable for the key part of a map
...
– Michal Bernhard
Mar 2 '16 at 13:10
...