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MySQL: Order by field size/length
...DER BY LENGTH(description) DESC;
The LENGTH function gives the length of string in bytes. If you want to count (multi-byte) characters, use the CHAR_LENGTH function instead:
SELECT * FROM TEST ORDER BY CHAR_LENGTH(description) DESC;
...
Composite Key with EF 4.1 Code First
...der = 1)]
[Required(ErrorMessage = "A ActivityName is required")]
[StringLength(50, ErrorMessage = "Activity Name must not exceed 50 characters")]
public string ActivityName { get; set; }
}
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Getting thread id of current method call
...
Quick and dirty thread num: NSString *s = [NSString stringWithFormat:@"%@", [NSThread currentThread]]; int threadNum = -1; sscanf(s.UTF8String, "<NSThread: 0x%*12[0-9a-f]>{number = %d", &threadNum);
– Hari Karam Singh
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Generate URL in HTML helper
...rn ((Controller)htmlHelper.ViewContext.Controller).Url;
const string itemKey = "HtmlHelper_UrlHelper";
if (htmlHelper.ViewContext.HttpContext.Items[itemKey] == null)
htmlHelper.ViewContext.HttpContext.Items[itemKey] = new UrlHelper(htmlHelper.ViewContext.Req...
Difference between res.send and res.json in Express.js
...on spaces', 2);
app.set('json replacer', replacer);
And passed to a JSON.stringify() like so:
JSON.stringify(value, replacer, spacing);
// value: object to format
// replacer: rules for transforming properties encountered during stringifying
// spacing: the number of spaces for indentation
This...
Invoke-WebRequest, POST with parameters
...quest needs to have the content type set to JSON and the body to be a JSON string. For example:
Invoke-WebRequest -UseBasicParsing http://example.com/service -ContentType "application/json" -Method POST -Body "{ 'ItemID':3661515, 'Name':'test'}"
or the equivalent for XML, etc.
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“please check gdb is codesigned - see taskgated(8)” - How to get gdb installed with homebrew code si
...ano /System/Library/LaunchDaemons/com.apple.taskgated.plist
change option string from -s to -sp at line 22, col 27.
Reboot the computer.
Use gdb. If you installed it with mac ports then you must use ggdb command. Or made an alias in your config file:
alias gdb='ggdb'
and use 'gdb' command then.
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Is CSS Turing complete?
...ully on the tape which is exactly like the clicking in this case. More formally, a model of computation can be viewed as a set of rules somebody needs to follow to do the computation. In that sense, I think CSS is Turing-Complete.
– John
Jun 11 '18 at 21:32
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In Javascript/jQuery what does (e) mean?
...nd the definition of the parameters of addEventlistener are:
type ：A string representing the event type to listen out for.
listener ：The object which receives a notification (an object that implements the Event interface) when an event of the specified type
occurs. This must be an obj...
Calculate a percent with SCSS/SASS
.... $foo + $bar * 1px), concatenating the unit on like that only gives you a string.
– cimmanon
Mar 10 '15 at 1:16
@cimm...