Shifts the left value by an amount specified by the right value.
|Property/method value type:||Number primitive|
Bitwise shift operators convert their left operands to a 32-bit integer value and shift them according to their right operation. The operator determines the kind of shifting that is applied.
ECMA 262 edition 2 - section - 11.7
ECMA 262 edition 3 - section - 11.7