大约有 42,000 项符合查询结果（耗时：0.0576秒） [XML]
What is “callback hell” and how and why does RX solve it?
...is other question has some examples of Javascript callback hell: How to avoid long nesting of asynchronous functions in Node.js
The problem in Javascript is that the only way to "freeze" a computation and have the "rest of it" execute latter (asynchronously) is to put "the rest of it" inside a call...
How do you create a dropdownlist from an enum in ASP.NET MVC?
...from TEnum e in Enum.GetValues(typeof(TEnum))
select new { Id = e, Name = e.ToString() };
return new SelectList(values, "Id", "Name", enumObj);
}
}
}
This allows you to write:
ViewData["taskStatus"] = task.Status.ToSelectList();
by using MyApp.Common
...
UITextfield leftView/rightView padding on iOS7
...s of UITextField instead of the default NSObject
Add a new method named - (id)initWithCoder:(NSCoder*)coder to set the image
- (id)initWithCoder:(NSCoder*)coder {
self = [super initWithCoder:coder];
if (self) {
self.clipsToBounds = YES;
[self setRightViewMode:UITextFieldVi...
“cannot resolve symbol R” in Android Studio
In every instance in all of my classes where I reference R.id.something , the R is in red and it says "cannot resolve symbol R". Also every time there is R.layout.something it is underlined in red and says "cannot resolve method setContentView(?)". The project always builds fine. It is annoyin...
Bold & Non-Bold Text In A Single UILabel?
...
Update
In Swift we don't have to deal with iOS5 old stuff besides syntax is shorter so everything becomes really simple:
Swift 5
func attributedString(from string: String, nonBoldRange: NSRange?) -> NSAttributedString {
let fontSize = UIFont.systemFontSize
let attrs = [
...
How do I scroll to an element using JavaScript?
...
You can use an anchor to "focus" the div. I.e:
<div id="myDiv"></div>
and then use the following javascript:
// the next line is required to work around a bug in WebKit (Chrome / Safari)
location.href = "#";
location.href = "#myDiv";
...
Count work days between two dates
...
For workdays, Monday to Friday, you can do it with a single SELECT, like this:
DECLARE @StartDate DATETIME
DECLARE @EndDate DATETIME
SET @StartDate = '2008/10/01'
SET @EndDate = '2008/10/31'
SELECT
(DATEDIFF(dd, @StartDate, @EndDate) + 1)
-(DA...
How to make a JSONP request from Javascript without JQuery?
...
Here's a JSBin that can be used to fiddle with JSONP from Wikipedia. It was referenced in this answer.
– rkagerer
Mar 8 '13 at 14:07
...
iOS White to Transparent Gradient Layer is Gray
...white to clear, but there's this strange gray tint that is showing up. Any ideas?
7 Answers
...
jQuery: serialize() form and other parameters
...
serialize() effectively turns the form values into a valid querystring, as such you can simply append to the string:
$.ajax({
type : 'POST',
url : 'url',
data : $('#form').serialize() + "&par1=1&par2=2&par3=232"
}
...