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iagocavalcante/responsabilidade-unica1.js

Created January 12, 2019 01:59
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responsabilidade-unica1.js
const usuarios = [
{ nome: 'Aluno 1', parcelasFaltantes: 3, valor: 89.9 },
{ nome: 'Aluno 2', parcelasFaltantes: 5, valor: 19.9 },
{ nome: 'Aluno 1', parcelasFaltantes: 7, valor: 49.9 },
{ nome: 'Aluno 1', parcelasFaltantes: 6, valor: 69.9 },
{ nome: 'Aluno 1', parcelasFaltantes: 2, valor: 99.9 }
]
const totalPorUsuario = usuario =>
usuario.parcelasFaltantes * usuario.valor;
const soma = (a, b) => a + b;
const somatorioTotal = usuarios =>
usuarios.map(totalPorUsuario).reduce(soma, 0);
console.log('valor total faltante =>', somatorioTotal(usuarios))
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