javascript curtocircuito
console.log(false && 1);//imprime falseconsole.log(0 && 1); // imprime 0console.log(false || 1); // imprime 1console.log(0 || 1 ); // imprime 1false && expr; //Não preciso avaliar expr, pois o resultado é sempre falsetrue || expr;//Não preciso avaliar expr, pois o resultado é sempre false
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