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Transaction isolation levels relation with locks on table
...B just executes a SELECT statement to read data. C reads and updates data. All these process work on the same table T.
READ UNCOMMITTED - no lock on the table. You can read data in the table while writing on it. This means A writes data (uncommitted) and B can read this uncommitted data and use it...
Comparator.reversed() does not compile using lambda
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This is a weakness in the compiler's type inferencing mechanism. In order to infer the type of u in the lambda, the target type for the lambda needs to be established. This is accomplished as follows. userList.sort() is expecting an argument of type Comparator<User>. In the first line, ...
Multiple line code example in Javadoc comment
I have a small code example I want to include in the Javadoc comment for a method.
15 Answers
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Set value of hidden input with jquery
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This worked for me:
$('input[name="sort_order"]').attr('value','XXX');
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HTML for the Pause symbol in audio and video control
... without BOM (which in most development environments is set by default) in order to instruct the parser how to transform the bytes into characters correctly. <meta charset="utf-8"/> should be used immediately after <head> in a HTML file, and make sure the correct HTTP headers Content-Ty...
Bash set +x without it being printed
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
Is there a Unix utility to prepend timestamps to stdin?
...es, it may be helpful to add BEGIN { $|++; } before the print statement in order to have Perl flush its output with each line.
– user725091
May 29 '14 at 11:25
2
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Unicode与UTF-8互转(C语言实现) - C/C++ - 清泛网 - 专注C/C++及内核技术
...***************************************************************/
int enc_unicode_to_utf8_one(unsigned long unic, unsigned char *pOutput,
int outSize)
{
assert(pOutput != NULL);
assert(outSize >= 6);
if ( unic <= 0x0000007F )
{
// * U-000000...
Parse (split) a string in C++ using string delimiter (standard C++)
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In order to get "tiger", use std::string token = s.substr(s.find(delimiter) + 1);, if you are sure that it exists (I use +1 in the length)...
– gsamaras
Apr 2 '19 at 16:45
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How to deselect a selected UITableView cell?
...ndexPath:indexPath animated:YES];
}
Swift 3.0:
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
//Change the selected background view of the cell.
tableView.deselectRow(at: indexPath, animated: true)
}
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