Game Development Reference
In-Depth Information
table 1.1 Truth table for the Boolean function AND
Format 1
Format 2
Input
Output
Input
Output
A
B
A and B
A
B
A and B
1
1
1
TRUE
TRUE
TRUE
1
0
0
TRUE
FALSE
FALSE
0
1
0
FALSE
TRUE
FALSE
FALSE
FALSE
FALSE
FALSE
FALSE
FALSE
Each Boolean function has its own unique truth table. They work in the same
way as the AND function does. They have two input values of TRUE and/or
FALSE and output a value of TRUE or FALSE.
If you are just learning about programming for the first time right now,
these concepts may seem a bit abstract and disconnected from real
programming. However, as you learn more about programming, you'll
realize how fundamental knowing these truth tables is to a holistic
understanding. It will become much clearer as you begin to write
your own programs.
Quick Reference
Boolean Algebra
Function
Boolean
algebra syntax
JavaScript
Truth table
AND
A • B
INPUT
OUTPUT
A && B
A
B
A AND B
0
0
0
0
1
0
1
0
0
1
1
1
OR
A + B
A || B
INPUT
OUTPUT
A
B
A OR B
0
0
0
0
1
1
1
0
1
1
1
1
 
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