Own summary of some commonly used English bar, nor to summarize the previous, sum up slowly, so as to go farther and farther in technology this road, beginning summarized much certainty, these words is a symbol of how far he can go, Come on! ! !
variable variable lexical scoping lexical scope
primitive type primitive type global variable global variable
object type object type function scope function scope
Direct digital property attribute numerical literal amount
Constructor constructor overflow overflows
garbage collection garbage collection underflow underflow
mutable variable infinity infinity
immutable immutable escape sequence escape characters
untyped untyped RegExp () constructor function
declare declare regular expression regular expressions