1. Bitwise Zero Fill Right Shift Operator. When We Apply >>> On A Positive Number, It Gives The Same Output As That Of >>.
2. Both >> And >>> Are Used To Shift The Bits Towards The Right. The Difference Is That The >> Preserve The Sign Bit While The Operator >>> Does Not Preserve The Sign Bit. To Preserve The Sign Bit, You Need To Add 0 In The MSB.
3. So, Its Result Will Always Be A Positive Number
am sharing some link Go ahead explore bitwise
http://www.java2s.com/Tutorial/JavaScript/0040__Operators/ShiftRightZeroFill.htm