Bitwise Left Shift Operator (<<) (JavaScript)

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)