I'm using an implementation of lazy lists where the type can be either Nil or Cons (value, thunk), where thunk is a function from unit to the rest of the list. I'm trying to write a function cross, which would function as List.combine does. Unfortunately, I'm having syntax errors. open Sequence;; let rec (cross : 'a Sequence.t -> '...
I want to ability to select code from my program such as dreamweaver or visual studio and then paste the code into a word file or my favourite work processor and have the syntax highlighted as well. Is there a website that can provide this service with the ability to highlight syntax from various languages? ...
How can we set element to some default date in mysql ? In oracle we would do something like start_date DATE DEFAULT to__date('01011900','DDMMYYYY') mutation_date_time DATE DEFAULT SYSDATE CONSTRAINT entity_specification UNIQUE(external_name, start_date_time, end_date_time)) Also do we have any site or resource where we can get ...
PHP allows me to: Hello, my name is <?php echo $name ?>, and stuff. Is that okay to do instead of Hello, my name is <?php echo $name; ?>, and stuff. I know the <?= ?> is being taken away, is this another one of those shortcuts to be killed? ...
Forgive me, I'm a beginner. The following code returns a parse error: $query = "INSERT INTO scenario_needgames VALUES ("$id", "Battle of the Bulge")"; the query builder in phpMyAdmin gave me this slightly modified string that works: $query = "INSERT INTO scenario_needgames VALUES (\"$id\" , \"Battle of the Bulge\");"; but I'm confu...
Can someone explain me the syntax below line 1? I am OK with js and function references, but this code looks a bit confusing. E.g. is it function declaration and execution? jQuery.noConflict(); (function($) { $(function() { // more code using $ as alias to jQuery }); })(jQuery); // other code using $ as an alias to the other li...
I am very new to C++ and still trying to learn syntax and best practices. I've defined a method with a single parameter: void foo(const std::string& name) 1) Is this a proper parameter declaration for a function that will be taking in a string defined by the user in, for example, a main method? 2) If this is proper/recommended synt...
Is there a way to refer to a Javascript variable with a string that contains its name? example: var myText = 'hello world!'; var someString = 'myText'; //how to output myText value using someString? ...
See also SO 1664677 I get this error 2: Syntax error: "(" unexpected when I run this script -- all help is very appreciated #!/usr/bin/perl use Digest::MD5 qw(md5_hex); printf "Usage : keygen.pl e-mail key-id\ne-mail : the one you provided\nkey-id : provided by hcf/hsfconfig\n"; $pad = pack("H2048", "00000000963007772c610eeeba510...
protected override Boolean IsValid(String propertyValue) { return !String.IsNullOrEmpty(propertyValue) && propertyValue.Trim().Length > 0; } This C# validation method does exactly what I want, but I wasn't aware that you could use expression short-circuiting like this. When propertyValue is null, doesn't execution still need to ev...
So I'm really interested in Erlang. I can't find an excuse to use it for anything big, but I try to use it for toy problems from time to time. Right now, I'm implementing a Roman Numeral translator. I'm just doing the "to" part for now, and I'm finding the code is awfully repetitive. It works like a charm, but, well, just look at it:...
What does this mean in python: sock.recvfrom(2**16) I know what sock is and I get the jest of recvfrom function, but what the hell is 2**16? ...
i = 1, 2, 3, 4, 5; this actually assigns 1 to i. I wonder if this type of assignment is actually useful somewhere? Do you know some application of this syntax? ...
type IFooable = abstract Foo : int -> int type IFooable2 = abstract Foo : a : int -> int type MyClass() = interface IFooable2 with member this.Foo(b) = 7 What is the difference between IFooable and IFooable2 ? Are they equivalent ? What is the purpose of it in the case of my example ? When to use it ? ...
In PHP5, what is the difference between using const and static? When is each appropriate? And what role does public, protected and private play - if any. ...
In some classes I see a call to a function is like: $this->ClearError(); When the function is residing in that class itself. How is the above approach different from a direct function call like: return ClearError(); ...
Is there a way to write this C/C++ code in Python? a = (b == true ? "123" : "456" ) Thanks so much! ...
I actually happily design and develop JEE Applications for quite 9 years, but I realized recently that as time goes by, I feel more and more fed up of dragging all these ugly bean classes with their bunch of getters and setters. Considering a basic bean like this : public class MyBean { // needs getter AND setter private int m...
Hi, How do you deal with broken data in XML files? For example, if I had <text>Some &improper; text here.</text> I'm trying to do: $doc = new DOMDocument(); $doc->validateOnParse = false; $doc->formatOutput = false; $doc->load(...xml'); and it fails miserably, because there's an unknown entity. Note, I can't use CDATA due to t...
Post an example to execute a "C" statement without semicolon( ; ) ...