semantics

I'm developing a script that extracts the messages from the message archive of a particular meetup.com group of which I'm a member - http://www.meetup.com/opencoffee/messages/archive/ The idea is to dynamically add these to a wordpress site and allow people to search messages, auto tag messages etc. The issue I have is how best to auto categorize these messages. I would welcome any thoughts and ideas of how best to go about this and what would be the most efficient way of programming this. Option 1 Find a source of tags by subject area such as finance, technology, business etc by using the

We can write functions in 2 ways: var v1 = m1('hello'); // error var v2 = m2('hello'); // OK var m1 = function(param){ // ... return param; } function m2(param){ // ... return param; } var v1 = m1('hello'); // OK var v2 = m2('hello'); // OK As I know there is only one difference - time of creation : m2 in compilation time, so we can use it 'before' declaration - like in my case. m1 in assignment time (code goes line by line) and we cannot use it before. Is one more efficient for memory or performance? In which case is one way more semantic, in which case second? Is here next difference? When

What is length static property of Function,Array and Object constructor? Static methods makes sense but what about length static property? Object.getOwnPropertyNames(Array) ["length", "name", "arguments", "caller", "prototype", "isArray"] Object.getOwnPropertyNames(Function) ["length", "name", "arguments", "caller", "prototype"] Note: I am getting answers about length property of Function.prototype that is not asked here. Object.getOwnPropertyNames(Function.prototype) ["length", "name", "arguments", "caller", "constructor", "bind", "toString", "call", "apply"] Object.getOwnPropertyNames(Object

In C if I declare a struct/union/enum: struct Foo { int i ... } when I want to use my structure I need to specify the tag: struct Foo foo; To loose this requirement, I have to alias my structure using typedef: typedef struct Foo Foo; Why not have all types/structs/whatever in the same "namespace" by default? What is the rationale behind the decision of requiring the declaration tag at each variable declaration (unless typdefe'd) ??? Many other languages do not make this distinction, and it seems that it's only bringing an extra level of complexity IMHO. Structures/records were a very early pre

I'm currently moving a page from HTML4 to HTML5, and I have kind of an issue. There's a bunch of lists with links inside the footer. Most of them link to information (faq etc.) about the site itself. So I think it's OK to put those inside a nav element (see "Introducing HTML5" and the HTHML5 Doctor). But two lists contain links to external pages like Facebook. Now I could wrap those inside an aside, but this is a bit of an edge case: "It is legitimate to wrap the links to other pages on the site with an aside inside the footer — but ask yourself whether the aside to instead be a sibling of the