大约有 45,000 项符合查询结果（耗时：0.0482秒） [XML]
JSON.Net Self referencing loop detected
... var q = (from a in db.Events where a.Active select a).ToList(); like
string jsonStr = Newtonsoft.Json.JsonConvert.SerializeObject(q, jsonSerializerSettings);
See:
https://www.newtonsoft.com/json/help/html/PreserveObjectReferences.htm
...
How do I find the install time and date of Windows?
...$sNewDate )
Exit
In Delphy 7, that would go as:
Function GetInstallDate: String;
Var
di: longint;
buf: Array [ 0..3 ] Of byte;
Begin
Result := 'Unknown';
With TRegistry.Create Do
Begin
RootKey := HKEY_LOCAL_MACHINE;
LazyWrite := True;
OpenKey ( '\SOFTWARE\Microsoft\Windows NT...
how to split the ng-repeat data with three columns using bootstrap
...[1,2,3]; var y = [1,2,3]; console.log(x === y); Deep checking means either stringifying and comparing strings, which is risky because an object may not be stringifiable, or recursively checking each property individually. I think Angular could implement that for filters, but I'm sure there's good re...
Using current time in UTC as default value in PostgreSQL
...
Correction: The 'utc' string must also be single-quoted, not double-quoted.
– code_dredd
Nov 22 '19 at 1:11
add a comment
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An expression tree may not contain a call or invocation that uses optional arguments
...oads? I was getting this when I made an overload. Something like void Blah(string a) and void Blah(object a). When I tried to MOQ out a call to the version with object, it gave me this error.
– vbullinger
Mar 21 '13 at 14:02
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Detect permission of camera in iOS
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Check the AVAuthorizationStatus and handle the cases properly.
NSString *mediaType = AVMediaTypeVideo;
AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:mediaType];
if(authStatus == AVAuthorizationStatusAuthorized) {
// do your logic
} else if(authStatus...
Return JSON response from Flask view
...ws returning a dictionary from a view function. Similar to how returning a string will produce a text/html response, returning a dict will call jsonify to produce an application/json response,
– CodeMantle
May 16 at 8:39
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Get item in the list in Scala?
... code into an invocation of a method named apply on that variable. So greetStrings(i) gets transformed into greetStrings.apply(i). Thus accessing an element of an array in Scala is simply a method call like any other. This principle is not restricted to arrays: any application of an object to some a...
SQL exclude a column using SELECT * [except columnA] FROM tableA?
...you could use SET @variable = (SELECT ... FOR XML PATH('')) to concatenate strings.
Use the ISNULL function to prepend a comma only if this is not the
first column name.
Use the QUOTENAME function to support spaces and punctuation in column names.
Use the WHERE clause to hide columns we don't want t...
How to “properly” create a custom object in JavaScript?
...languages, albeit with slightly clumsier syntax. You can sprinkle in a few extra features if you like. Maybe you want makeSubclass to take and remember a class name and provide a default toString using it. Maybe you want to make the constructor detect when it has accidentally been called without the...