Operator	Syntax	Description
Logical AND	expr1 && expr2	If expr1 can be converted to true, returns expr2; else, returns expr1.
Logical OR	expr1 || expr2	If expr1 can be converted to true, returns expr1; else, returns expr2.
Logical NOT	!expr	Returns false if its single operand can be converted to true; otherwise, returns true.

Examples of expressions that can be converted to false are:

• null;
• NaN;
• 0;
• empty string ("" or '' or ``);
• undefined.

Operator precedence:

• && > ||