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javascriptboolean-logic

Boolean addition in Javascript

How do i do a clean boolean add in javascript?

1+1 = 0;
1+0 = 1;
1+1+1 = 1;

etc. can one just sum booleans?

true+true = false
false+true = true;

etc.

Solution

  • Just use bitwise XOR operator:

    1 ^ 1 = 0
1 ^ 0 = 1
1 ^ 1 ^ 1 = 1

    FWIW: The same works for most high-level programming languages.