Microsoft JScript
<< Operator
Language Reference
Version 1

See Also

Used to shift the bits of an expression to the left.
result = expression1 << expression2

The << operator syntax has these parts:

Part Description
result Any variable.
expression1 Any expression.
expression2 Any expression.

The << operator shifts the bits of expression1 left by the number of bits specified in expression2. For example:

var temp temp = 14 << 2

The variable temp has a value of 56 as 14 (00001110 in binary) shifted left two bits equals 56 (00111000 in binary). For information on when a run-time error is generated by the << operator, see the Operator Behavior table.