Left shifts the bits of an expression.
Syntax
result = expression1 << expression2
Parameters
result
Any variable.
expression1
Any expression.
expression2
Any expression.
Remarks
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 because 14 (00001110 in binary) shifted left two bits equals 56 (00111000 in binary).
Requirements
Supported in the following document modes: Quirks, Internet Explorer 6 standards, Internet Explorer 7 standards, Internet Explorer 8 standards, Internet Explorer 9 standards, Internet Explorer 10 standards, Internet Explorer 11 standards. Also supported in Store apps (Windows 8 and Windows Phone 8.1). See Version Information.
See Also
Left Shift Assignment Operator (<<=)
Bitwise Right Shift Operator (>>)
Unsigned Right Shift Operator (>>>)
Operator Precedence
Operator Summary (JavaScript)