大约有 40,000 项符合查询结果（耗时：0.0550秒） [XML]
Initializing select with AngularJS and ng-repeat
..."the correct way" doesn't work sometimes (eg. if you want to translate the strings that populate the option names)
– btk
Mar 16 '15 at 21:10
11
...
Integer division: How do you produce a double?
... int to double is a widening primitive conversion.
You can get rid of the extra pair of parentheses by casting the denominator instead of the numerator:
double d = num / (double) denom;
share
|
i...
Get current batchfile directory
...n used above, ending backslash or not) you will need to enclose the entire string in double quotes if path has spaces (i.e. "%batdir%ExtraDir"). You can always use PUSHD %~dp0. [https: // ss64.com/ nt/ syntax-args .html] has more on (%~) parameters.
Note that using (::) at beginning of a line makes...
Set a persistent environment variable from cmd.exe
...stry key, then broadcast a WM_SETTINGCHANGE message with lParam set to the string "Environment". This allows applications, such as the shell, to pick up your updates.
You will of course need admin rights to do this. I know of no way to broadcast a windows message from Windows batch so you'll need...
When should we call System.exit in Java
...
In that case, it's not needed. No extra threads will have been started up, you're not changing the exit code (which defaults to 0) - basically it's pointless.
When the docs say the method never returns normally, it means the subsequent line of code is effect...
Handling an empty UITableView. Print a friendly message
...import UIKit
extension UITableView {
func setEmptyMessage(_ message: String) {
let messageLabel = UILabel(frame: CGRect(x: 0, y: 0, width: self.bounds.size.width, height: self.bounds.size.height))
messageLabel.text = message
messageLabel.textColor = .black
messa...
What RSA key length should I use for my SSL certificates?
...here was an attempt circa 2010-2015 to launch 3072 for use-cases where the extra computational cost of 4096 is not ideal. It faded away but there are still some old articles spreading the merits of (faster) 3072.
Extra
RSA was first publicly described in 1977 and it's still strong almost 50 year...
Insert code into the page context using a content script
...n('\n');
Method 2b: Using a function
For a big chunk of code, quoting the string is not feasible. Instead of using an array, a function can be used, and stringified:
var actualCode = '(' + function() {
// All code is executed in a local scope.
// For example, the following does NOT overwrit...
Oracle PL/SQL - How to create a simple array variable?
... Do I insert into tables the same way as arrays? i.e. my_array(0) := 'some string';
– Abdul
Jun 15 '16 at 15:51
@TonyA...
Better way to check variable for null or empty string?
...tion (present and neither empty nor only white space
function IsNullOrEmptyString($str){
return (!isset($str) || trim($str) === '');
}
share
|
improve this answer
|
foll...