Objects, arrays, and transactions
Move from single values to a ledger
An object groups the fields that belong to one transaction. An array holds many transactions. Array methods let you transform that real structure instead of copying totals by hand.
The included rows are explicitly marked as practice data. Your job is to render them and derive income, expenses, and balance from the array.
Instruções
Use filter to select income transactions.
Dica: Filter where item.type === 'income'.
Onde é que isto entra?
// Use map to render rows and reduce to calculate totals.Escreva na linha 8 — abaixo desse comentário, depois do código que já adicionou.
Use reduce to total amountAgorot.
Render transaction rows with map and join.
Show income, expenses, and balance in #summary.
Seu Código
Descreva o que você quer construir para esta etapa e eu escrevo o código — depois clique em Aplicar para inseri-lo no seu editor. Esta etapa: Use filter to select income transactions.