The bitwise OR operator (
|) returns a
1 in each bit position for which the corresponding bits of either or both operands are
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a | b
The operands are converted to 32-bit integers and expressed by a series of bits (zeroes and ones). Numbers with more than 32 bits get their most significant bits discarded. For example, the following integer with more than 32 bits will be converted to a 32 bit integer:
Before: 11100110111110100000000000000110000000000001 After: 10100000000000000110000000000001
Each bit in the first operand is paired with the corresponding bit in the second operand: first bit to first bit, second bit to second bit, and so on.
The operator is applied to each pair of bits, and the result is constructed bitwise.
The truth table for the
OR operation is:
|a||b||a OR b|
. 9 (base 10) = 00000000000000000000000000001001 (base 2) 14 (base 10) = 00000000000000000000000000001110 (base 2) -------------------------------- 14 | 9 (base 10) = 00000000000000000000000000001111 (base 2) = 15 (base 10)
Bitwise ORing any number
Using bitwise OR
// 9 (00000000000000000000000000001001) // 14 (00000000000000000000000000001110) 14 | 9; // 15 (00000000000000000000000000001111)
The definition of 'Bitwise OR expression' in that specification.
|Bitwise OR (||Chrome Full support 1||Edge Full support 12||Firefox Full support 1||IE Full support 3||Opera Full support 3||Safari Full support 1||WebView Android Full support 1||Chrome Android Full support 18||Firefox Android Full support 4||Opera Android Full support 10.1||Safari iOS Full support 1||Samsung Internet Android Full support 1.0||nodejs Full support 0.1.100|
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