大约有 30,000 项符合查询结果（耗时：0.0412秒） [XML]
Show and hide a View with a slide up/down animation
I have a LinearLayout that I want to show or hide with an Animation that pushes the layout upwards or downwards whenever I change its visibility.
...
Are class names in CSS selectors case sensitive?
...
CSS selectors are generally case-insensitive; this includes class and ID selectors.
But HTML class names are case-sensitive (see the attribute definition), and that's causing a mismatch in your second example. This has not changed in HTML5.1
This is because the case-sensitivity of selectors i...
Math.random() versus Random.nextInt(int)
... }
}
}
}
public static void main(String[] args) {
long start = System.currentTimeMillis();
usingRandomClass();
long end = System.currentTimeMillis();
System.out.println("usingRandomClass " + (end - start));
start = Sys...
Reference assignment operator in PHP, =&
...ion 6.2:
All binary arithmetic, comparison, assignment, bitwise, logical, string, and type operators MUST be preceded and followed by at least one space
By this rule, there should always be a space after the = operator -- this makes =& a violation.
Furthermore, there are other rules that state...
Why invoke Thread.currentThread.interrupt() in a catch InterruptException block?
...:
public class InterruptedSleepingThreadMain {
public static void main(String[] args) throws InterruptedException {
Thread thread = new Thread(new InterruptedSleepingRunner());
thread.start();
// Giving 10 seconds to finish the job.
Thread.sleep(10000);
//...
Javascript - remove an array item by value [duplicate]
...se JavaScript's Array splice method:
var tag_story = [1,3,56,6,8,90],
id_tag = 90,
position = tag_story.indexOf(id_tag);
if ( ~position ) tag_story.splice(position, 1);
P.S. For an explanation of that cool ~ tilde shortcut, see this post:
Using a ~ tilde with indexOf to check for the ex...
Test or check if sheet exists
...ll the sheets until you find a match.
Function WorksheetExists(shtName As String, Optional wb As Workbook) As Boolean
Dim sht As Worksheet
If wb Is Nothing Then Set wb = ThisWorkbook
On Error Resume Next
Set sht = wb.Sheets(shtName)
On Error GoTo 0
WorksheetExists = Not sht...
What do two question marks together mean in C#?
...null Answer# to Answer (if all Answers are null then the Answer is null):
string Answer = Answer1 ?? Answer2 ?? Answer3 ?? Answer4;
Also it's worth mentioning while the expansion above is conceptually equivalent, the result of each expression is only evaluated once. This is important if for exa...
Get decimal portion of a number with JavaScript
...
(2.3 % 1).toFixed(4).substring(2) = "3000" if you need it without the 0.
– Simon_Weaver
Oct 2 '15 at 9:22
15
...
Mongoose, Select a specific field with find
...
The _id field is always present unless you explicitly exclude it. Do so using the - syntax:
exports.someValue = function(req, res, next) {
//query with mongoose
var query = dbSchemas.SomeValue.find({}).select('name -_id')...