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docs/JavaScript_Advance/bitwise-operaors.md

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+Bitwise operators treat their operands as a sequence of 32 bits (zeroes and ones), rather than as decimal, hexadecimal,
+or octal numbers. For example, the decimal number nine has a binary representation of 1001.
+Bitwise operators perform their operations on such binary representations,but they return standard JavaScript numerical values.
+
+Bitwise AND
+When a bitwise AND is performed on a pair of bits, it returns 1 if both bits are 1.
+
+**`var x = 5 & 1; // outputs 1`**
+
+Bitwise OR
+Bitwise OR returns 1 if one of the bits are 1:
+
+ var x = 5 | 1; // outputs 5
+
+JavaScript Bitwise XOR (^)
+Bitwise OR returns 1 if one of the bits are 1:
+
+ var x = 5 ^ 1; // outputs 4
+
+JavaScript Bitwise NOT (~)
+
+ var x = ~5; // outputs -6
+
+JavaScript (Zero Fill) Bitwise Left Shift (<<)
+This is a zero fill left shift. One or more zero bits are pushed in from the right, and the leftmost bits fall off:
+
+ var x = 5 << 1; //outputs 10
+
+JavaScript (Sign Preserving) Bitwise Right Shift (>>)
+This is a sign preserving right shift. Copies of the leftmost bit are pushed in from the left, and the rightmost bits fall off:
+
+ var x = -5 >> 1; // outputs -3
+
+JavaScript (Zero Fill) Right Shift (>>>)
+This is a zero fill right shift. One or more zero bits are pushed in from the left, and the rightmost bits fall off:
+
+ var x = 5 >>> 1; // outputs 2
+
+
+
+