redd 發表於 2022-10-31 17:17:04

JS : .map Method

const animals = ['Hen', 'elephant', 'llama', 'leopard', 'ostrich', 'Whale', 'octopus', 'rabbit', 'lion', 'dog'];

// Create the secretMessage array below
const secretMessage = animals.map(animal => {
return animal;
});

console.log(secretMessage.join(''));

const bigNumbers = ;

// Create the smallNumbers array below
const smallNumbers = bigNumbers.map(bigNumber => {
return bigNumber/100;
});

console.log(smallNumbers);結果:
HelloWorld
[ 1, 2, 3, 4, 5 ]

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