Combine with (& &) logic or (||), dynamic binding and ternary operation

And （&&）

Act on two or more values , And only When all operands are true , Only then true.

1. The first operand is true : Will enter the judgment of the second operand , And whether the second operand is true or false , Will return the second operand .

2. The first operand is false : The judgment of the second operand will not be entered , Returns the first operand directly .

or （||）

The same applies to two or more values , however As long as one operand is true , Just go back to real .

1. If the first operand is true , Then it will not enter the judgment of the second number . So whether the second operand is true or false , All return the first operand directly

2. If the first operand is false , Then it will enter the judgment of the second number . But whether the second operand is true or false , Both return the second operand directly

Dynamic binding combined with ternary operation