大约有 46,000 项符合查询结果(耗时:0.0384秒) [XML]
Linux bash: Multiple variable assignment
...
Why not avoid 4 subshells plus an extra sed process, and just do all that in one line: IFS=/ read -r m d y < <(echo 12/29/2009)
– Amit Naidu
May 11 at 10:03
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Convert JS date time to MySQL datetime
...ion twoDigits(d) {
if(0 <= d && d < 10) return "0" + d.toString();
if(-10 < d && d < 0) return "-0" + (-1*d).toString();
return d.toString();
}
/**
* …and then create the method to output the date string as desired.
* Some people hate using prototypes thi...
How to make CSS3 rounded corners hide overflow in Chrome/Opera
...elements don't clip their contents to their border-radius in Webkit. This extra layer simply makes it so the div with border-radius is NOT positioned, and simply sits inside a positioned element.
– Daniel Beardsley
Jun 21 '11 at 0:28
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How do I clone a Django model instance object and save it to the database?
...harm. I thought about the model_to_dict solution below, but it requires an extra step and it would have the same issue with the through relations, which I have to deal manually anyway so it has no major impact for me.
– Anderson Santos
Aug 18 '16 at 14:18
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Is it possible to declare two variables of different types in a for loop?
... to unpack a tuple like so:
for (auto [i, f, s] = std::tuple{1, 1.0, std::string{"ab"}}; i < N; ++i, f += 1.5) {
// ...
}
The above will give you:
int i set to 1
double f set to 1.0
std::string s set to "ab"
Make sure to #include <tuple> for this kind of declaration.
You can spe...
Can I have multiple background images using CSS?
... support IE8 or below, then the best way you can work around it is to have extra divs:
<body>
<div id="bgTopDiv">
content here
</div>
</body>
body{
background-image: url(images/bg.png);
}
#bgTopDiv{
background-image: url(images/bgTop.png);
backg...
FirstOrDefault: Default value other than null
...ception when I'm working with collections:
public class Foo
{
public string Bar{get; set;}
}
void Main()
{
var list = new List<Foo>();
//before C# 6.0
string barCSharp5 = list.DefaultIfEmpty(new Foo()).FirstOrDefault().Bar;
//C# 6.0 or later
var barCSharp6 = list.Firs...
Submit a form using jQuery [closed]
...you'd need to put the form data into a JavaScript data structure with your extra data and serialize it. In that case you'd probably use serializeArray on the form and merge your other data in.
– tvanfosson
Jul 11 '14 at 14:42
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Emulating a do-while loop in Bash
...apability is pretty cool! You could also use it to insert a delimiter in a string. Thanks!
– Paused until further notice.
Oct 12 '18 at 18:48
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How do I submit disabled input in ASP.NET MVC?
...e submitting form directly with submit button without using javascript. No extra work required!
Eg:
<select asp-for="TypeId"
asp-items="@(new SelectList(await TypeRepository.FetchTypesAsync(), "TypeId", "Name"))"
class="form-control form-control-sm"
readonly
style="pointer-events...
