A parameter is the variable which is part of the method’s signature (method declaration). An argument is an expression used when calling the method. Consider the following code: void Foo(int i, float f) { // Do things } void Bar() { int anInt = 1; Foo(anInt, 2.0); } Here i and f are the parameters, … Read more
Dart has two types of optional parameters: named and positional. Before I discuss the differences, let me first discuss the similarities. Dart’s optional parameters are optional in that the caller isn’t required to specify a value for the parameter when calling the function. Optional parameters can only be declared after any required parameters. Optional parameters … Read more
When it comes to describing parameters, arrays always decay into pointers to their first element. When you pass an array declared as int Array[3] to the function void foo(int array[]), it decays into a pointer to the beginning of the array i.e. int *Array;. Btw, you can describe a parameter as int array[3] or int … Read more
The question is misguided. When creating a model field in Django, you are not defining a function, so function default values are irrelevant: from datetime import datetime, timedelta class MyModel(models.Model): # default to 1 day from now my_date = models.DateTimeField(default=datetime.now() + timedelta(days=1)) This last line is not defining a function; it is invoking a function … Read more
The important difference is that matrix parameters apply to a particular path element while query parameters apply to the request as a whole. This comes into play when making a complex REST-style query to multiple levels of resources and sub-resources: http://example.com/res/categories;name=foo/objects;name=green/?page=1 It really comes down to namespacing. Note: The ‘levels’ of resources here are categories … Read more
From MSDN: If two candidates are judged to be equally good, preference goes to a candidate that does not have optional parameters for which arguments were omitted in the call. This is a consequence of a general preference in overload resolution for candidates that have fewer parameters.
I just tested this and it works in Access 2010. Say you have a SELECT query with parameters: PARAMETERS startID Long, endID Long; SELECT Members.* FROM Members WHERE (((Members.memberID) Between [startID] And [endID])); You run that query interactively and it prompts you for [startID] and [endID]. That works, so you save that query as [MemberSubset]. … Read more
Actually if you create func: create function p1() returns INTEGER DETERMINISTIC NO SQL return @p1; and view: create view h_parm as select * from sw_hardware_big where unit_id = p1() ; Then you can call a view with a parameter: select s.* from (select @p1:=12 p) parm , h_parm s; I hope it helps.
When PowerShell sees a command starting with a string it just evaluates the string, that is, it typically echos it to the screen, for example: PS> “Hello World” Hello World If you want PowerShell to interpret the string as a command name then use the call operator (&) like so: PS> & ‘C:\Program Files\IIS\Microsoft Web … Read more
As others have noted, you cannot have a field of “ref to variable” type. However, just knowing that you cannot do it is probably unsatisfying; you probably also want to know first, why not, and second, how to get around this restriction. The reason why is because there are only three possibilities: 1) Disallow fields … Read more