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querySelector and querySelectorAll vs getElementsByClassName and getElementById in JavaScript
...at is a member of the foo class: .foo li
document.querySelector("#view:_id1:inputText1") it doesn't work. But writing document.getElementById("view:_id1:inputText1") works. Any ideas why?
The : character has special meaning inside a selector. You have to escape it. (The selector escape charact...
MFC RadioButton用法详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...件定义Control变量或Value变量，每组只能定义一个）
BOOL m_Radio1;//对应于组 1 1
BOOL m_Radio3; //对应于组 2 1
BOOL m_Radio7; //对应于组 3 1
BOOL m_Radio9; //对应于组 4 1
CButton m_RBtGroup1; //对应于组 1 1
CButton m_RBtGroup2;...
Rotating and spacing axis labels in ggplot2
...
Change the last line to
q + theme(axis.text.x = element_text(angle = 90, vjust = 0.5, hjust=1))
By default, the axes are aligned at the center of the text, even when rotated. When you rotate +/- 90 degrees, you usually want it to be aligned at the edge instead:
The image ab...
How to print struct variables in console?
...se2{
Page: 1,
Fruits: []string{"apple", "peach", "pear"}}
res2B, _ := json.Marshal(res2D)
fmt.Println(string(res2B))
That would print:
{"page":1,"fruits":["apple","peach","pear"]}
If you don't have any instance, then you need to use reflection to display the name of the field of a g...
Download a file by jQuery.Ajax
...
Or alternatively use window.open(<url>, '_blank'); to ensure that the download won't replace your current browser content (regardless of the Content-Disposition header).
– Christopher King
Aug 15 '14 at 15:38
...
PHP and Enumerations
... self::$constCacheArray = [];
}
$calledClass = get_called_class();
if (!array_key_exists($calledClass, self::$constCacheArray)) {
$reflect = new ReflectionClass($calledClass);
self::$constCacheArray[$calledClass] = $reflect->getConstants();...
Integrating the ZXing library directly into my Android application
...t XML file:
<ImageView
android:id="@+id/qrCode"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="50dp"
android:layout_centerHorizontal="true"/>
Code snippet:
// ImageView to display the QR code in. This should be defin...
Get specific object by id from array of objects in AngularJS
...by id, the result is an array
// so we select the element 0
single_object = $filter('filter')(foo.results, function (d) {return d.id === 2;})[0];
// If you want to see the result, just check the log
console.log(single_object);
}]);
Plunker: http://plnkr.co/edit/5E7FYqNNqDuqFBlyDq...
Why are Subjects not recommended in .NET Reactive Extensions?
...c class MessageListener
{
private readonly IObservable<IMessage> _messages;
private readonly IScheduler _scheduler;
public MessageListener()
{
_scheduler = new EventLoopScheduler();
var messages = ListenToMessages()
.Subscri...
How to “fadeOut” & “remove” a div in jQuery?
...e</td>
<td>ECH-CHEBABY</td>
<th>@__chebaby</th>
<td><button class="btn btn-danger deleteItem">Delete</button></td>
</tr>
<tr class="item">
<td>2</td>
<t...