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Conditional Expressions

Encapsulates a common usage for an if: 

if (cond) {
   v = Expr1;
} else {
   v = Expr2;
}

can be written as 

v = cond ? Expr1 : Expr2;

Examples: 

x = (y > 0) ? z+1 : z-1;
or
x = z + ((y > 0) ? 1 : -1);