Flash CS3 Documentation

ActionScript 2.0 Language Reference > ActionScript language elements > Operators > >>= bitwise right shift and assignment operator

>>= bitwise right shift and assignment operator

expression1 >>= expression2

This operator performs a bitwise right-shift operation and stores the contents as a result in expression1.

The following two statements are equivalent:

A >>= B; 
A = (A >> B);

Availability: ActionScript 1.0; Flash Player 5

Operands

expression1 : Number - A number or expression to be shifted right.

expression2 : Number - A number or expression that converts to an integer from 0 to 31.

Returns

Number - The result of the bitwise operation.

Example

The following commented code uses the bitwise right shift and assignment (>>=) operator.

function convertToBinary(numberToConvert:Number):String { 
 var result:String = ""; 
 for (var i = 0; i<32; i++) { 
 // Extract least significant bit using bitwise AND 
 var lsb:Number = numberToConvert & 1; 
 // Add this bit to the result 
 string result = (lsb ? "1" : "0")+result; 
 // Shift numberToConvert right by one bit, to see next bit 
 numberToConvert >>= 1; 
 } 
 return result; 
} 
trace(convertToBinary(479)); 
// Returns the string 00000000000000000000000111011111 
// This string is the binary representation of the decimal 
// number 479

See also

>> bitwise right shift operator

Flash CS3