大约有 21,000 项符合查询结果（耗时：0.0498秒） [XML]
How do I rename the extension for a bunch of files?
...oes not work for filenames with spaces in them without proper quoting (now added above). When working purely on your own files that you know do not have spaces in the filenames this will work but whenever you write something that may be reused at a later time, do not skip proper quoting.
...
How to extract base URL from a string in JavaScript?
...e complain that it doesn't take into account protocol. So I decided to upgrade the code, since it is marked as answer. For those who like one-line-code... well sorry this why we use code minimizers, code should be human readable and this way is better... in my opinion.
var pathArray = "https://some...
What does the ^ operator do in Java?
... double) (casting the result to int if necessary).
You can also use the traditional bit-shifting trick to compute some powers of two. That is, (1L << k) is two to the k-th power for k=0..63.
See also
Wikipedia: Arithmetic shift
Merge note: this answer was merged from another questio...
Android Drawing Separator/Divider Line in Layout?
...
I usually use this code to add horizontal line:
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="@android:color/darker_gray"/>
To add vertical separator, switch the layout_width and layout_h...
Binding multiple events to a listener (without JQuery)?
...tarted incorporating Safari's touchEvents for mobile devices. I find that addEventListener s are stacking up with conditionals. This project can't use JQuery.
...
Private pages for a private Github repo
...ub.com for a private repository named foo which is accessible only one had access to the foo repository itself.
10 Ans...
Extract a dplyr tbl column as a vector
...ate = TRUE)
iris2 <- copy_to(db, iris)
vec <- pull(iris2, Species)
head(vec)
#> [1] "setosa" "setosa" "setosa" "setosa" "setosa" "setosa"
share
|
improve this answer
|
...
How can I use Timer (formerly NSTimer) in Swift?
...
This will work:
override func viewDidLoad() {
super.viewDidLoad()
// Swift block syntax (iOS 10+)
let timer = Timer(timeInterval: 0.4, repeats: true) { _ in print("Done!") }
// Swift >=3 selector syntax
let timer = Timer.scheduledTimer(timeI...
Attach parameter to button.addTarget action in Swift
...
You cannot pass custom parameters in addTarget:.One alternative is set the tag property of button and do work based on the tag.
button.tag = 5
button.addTarget(self, action: "buttonClicked:",
forControlEvents: UIControlEvents.TouchUpInside)
Or for Swift ...
How to use performSelector:withObject:afterDelay: with primitive types in Cocoa?
...
Ovesh
4,72199 gold badges4747 silver badges6969 bronze badges
answered Nov 14 '09 at 17:58
MortyMorty
...