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Por qué massToMove no está definido

Hola, quiero devolver massToMove desde mi algoritmo. Pero no estoy definido, cuando consola.log() dentro del bucle obtuve el número correcto. ¿Por qué no está definido y cómo puedo evitarlo? Es bastante extraño porque la variable se define como '0' y se cambia dentro del bucle.

 let numberOfElephants = 6; let massOfElephants = [2400, 2000, 1200, 2400, 1600, 4000]; let startOrder = [1, 4, 5, 3, 6, 2]; let endOrder = [5, 3, 2, 4, 6, 1]; const sortElephants = ( numberOfElephants, massOfElephants, elephantsOrder, proposedOrder ) => { const elephantObject = []; elephantsOrder.forEach((order, i) => { elephantObject.push({ [order]: massOfElephants[i] }); }); let massToMove = 0; for (let i = 0; i < numberOfElephants; i++) { for (let j = 0; j < numberOfElephants; j++) { if (startOrder[i] === proposedOrder[j]) { if ( startOrder.indexOf(startOrder[i]) === endOrder.indexOf(proposedOrder[j]) ) return; const indexOfCorrect = proposedOrder.findIndex( (num) => num === endOrder[j] ); const itemAtGivenOrder = startOrder[indexOfCorrect]; let isCorrect = endOrder.indexOf(itemAtGivenOrder) === startOrder.indexOf(itemAtGivenOrder); let temp; temp = startOrder[indexOfCorrect]; startOrder[indexOfCorrect] = startOrder[i]; startOrder[i] = temp; const elephantAtGivenCorrectIndex = elephantObject.find( (elephant) => elephant[itemAtGivenOrder.toString()] ); const startingElephant = elephantObject.find( (elephant) => elephant[startOrder[i]] ); if (!isCorrect) { massToMove += startingElephant[startOrder[i]]; } else { massToMove += elephantAtGivenCorrectIndex[itemAtGivenOrder] + startingElephant[startOrder[i]]; } } } } return massToMove; };

console.log(sortElephants(numberOfElephants, massOfElephants, startOrder, endOrder));

about 4 years ago · Juan Pablo Isaza
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