I do not own this video, this video was published on Channel9, and the original URL is: channel9.msdn.... If anyone has concerns regarding the copyrights, I'll remove this video immediately. Thanks.
7:24 Boolean is treated as 0 or 1 when added to a number. Whenever bool or number is added to string their respective toString conversion is used ('true' 'false' for bool.) What's odd is that if("") and if(0) don't evaluate to false. 9:00 interfaces sure can help bring down the size of parameters 10:45 optional always has to be at the end I assume 12:24 Interesting. In a way JavaScript by default is infinitely overloaded as it doesn't care what you put in for parameters!) 21:00 Does it have to encapsulate the function within 2 pairs of parenthesis? (closure access to an outer scope from an inner 22:15 If the parameters were say x1 y1 then I think you wouldn't need to use 'this' to differentiate from inner to outer scope. 25:30 Once you compile C/C++ private vars are just the same as public, it's only in source code that is has any meaning. TypeScript could be thought as source, JS as compiled.
