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Bitwise Left Shift Operator (<<) (JavaScript)

Left shifts the bits of an expression.

result = expression1 << expression2

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 because 14 (00001110 in binary) shifted left two bits equals 56 (00111000 in binary).

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.

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