大约有 40,000 项符合查询结果（耗时：0.0347秒） [XML]
Turning multi-line string into single comma-separated
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awk one liner
$ awk '{printf (NR>1?",":"") $2}' file
+12.0,+15.5,+9.0,+13.5
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mysql: see all open connections to a given database?
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As well you can use:
mysql> show status like '%onn%';
+--------------------------+-------+
| Variable_name | Value |
+--------------------------+-------+
| Aborted_connects | 0 |
| Connections | 303 |
| Max_used...
Start/Stop and Restart Jenkins service on Windows
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Open Console/Command line --> Go to your Jenkins installation directory. Execute the following commands respectively:
to stop:
jenkins.exe stop
to start:
jenkins.exe start
to restart:
jenkins.exe restart
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Removing leading zeroes from a field in a SQL statement
...(replace('000309933200,00 USD', ' ', '|'),'0',' ')),' ','0'), '|', ' ') --> 309933200,00 USD
– Robert Lujo
Jun 16 '16 at 12:23
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Convert Unix timestamp into human readable date using MySQL
...one?
Here's a one liner if you have quick access to the mysql cli:
mysql> select convert_tz(from_unixtime(1467095851), 'UTC', 'MST') as 'local time';
+---------------------+
| local time |
+---------------------+
| 2016-06-27 23:37:31 |
+---------------------+
Replace 'MST' with you...
Convert NSDate to NSString
...ve
[formatter release];
Swift 4.2 :
func stringFromDate(_ date: Date) -> String {
let formatter = DateFormatter()
formatter.dateFormat = "dd MMM yyyy HH:mm" //yyyy
return formatter.string(from: date)
}
sha...
Find if variable is divisible by 2
...& 1
even: !(x & 1)
Reference: High Performance JavaScript, 8. ->Bitwise Operators
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Javascript Equivalent to PHP Explode()
...y = this.split(separator);
if (limit !== undefined && array.length >= limit)
{
array.push(array.splice(limit - 1).join(separator));
}
return array;
};
Should mimic PHP's explode() function exactly.
'a'.explode('.', 2); // ['a']
'a.b'.explode('.', 2); // ['a', 'b...
Return string without trailing slash
...tr) {
if(str.substr(-1) === '/') {
return str.substr(0, str.length - 1);
}
return str;
}
Note: IE8 and older do not support negative substr offsets. Use str.length - 1 instead if you need to support those ancient browsers.
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How to format a DateTime in PowerShell
...n pick one of the elements of the array via the []-operator, e.g.,
PS C:\> $d.GetDateTimeFormats()[12]
Dienstag, 29. November 2016 19.14
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