大约有 19,000 项符合查询结果（耗时：0.0291秒） [XML]
What are 'get' and 'set' in Swift?
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Why use multiple columns as primary keys (composite primary key)
...ther silly because it is redundant. And slower.
– PerformanceDBA
Feb 17 '19 at 12:57
2
The "great...
How to set a selected option of a dropdown list control using angular JS
...selectedVariant must be set to one of those objects. I do not know which information you have in your scope, but here's an example:
JS:
$scope.options = [{ name: "a", id: 1 }, { name: "b", id: 2 }];
$scope.selectedOption = $scope.options[1];
HTML:
<select data-ng-options="o.name for o in opt...
Event on a disabled input
...d make the field readonly and on submit disable all readonly fields
$(".myform").submit(function(e) {
$("input[readonly]", this).attr("disabled", true);
});
and the input (+ script) should be
<input type="text" readonly="readonly" name="test" value="test" />
$('input[readonly]').click...
Replace words in the body text
...e javascript to automate collecting databases, images, videos, filling web forms, upload, may be to work with excel. Applescript is ok with it but java is seem to be a whole new level and much more better. What should I start with in order to achieve my purposes. I know 0 about javascript and I dont...
Convert any object to a byte[]
...
Use the BinaryFormatter:
byte[] ObjectToByteArray(object obj)
{
if(obj == null)
return null;
BinaryFormatter bf = new BinaryFormatter();
using (MemoryStream ms = new MemoryStream())
{
bf.Serialize(ms, obj);...
Avoiding if statement inside a for loop?
... the body of the loop as a functor. It gets inlined at compile-time, no performance penalty.
The idea of passing in what varies is ubiquitous in the C++ Standard Library. It is called the strategy pattern.
If you are allowed to use C++11, you can do something like this:
#include <iostream>...
React.js - input losing focus when rerendering
... This solved my problem with rendering a sub-component containing an input form. But in my case I needed the opposite -- the form was not re-rendering when I wanted it to. Adding the key attribute worked.
– Sam Texas
May 17 '15 at 22:13
...
Visual Studio debugging “quick watch” tool and lambda expressions
...ws.
You can however use System.Linq.Dynamic expressions, which take the form .Where("Id = @0", 2) - it doesn't have the full range of methods available in standard Linq, and doesn't have the full power of lambda expressions, but still, it's better than nothing!
...
Removing rounded corners from a element in Chrome/Webkit
...
Just my solution with dropdown image (inline svg)
select.form-control {
-webkit-appearance: none;
-webkit-border-radius: 0px;
background-image: url("data:image/svg+xml;utf8,<svg version='1.1' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlin...