A solução é bem simples, e o código está anexado a esse Gist!
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December 27, 2022 21:05
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Compração de Arrays, como saber quem eu crio, quem eu edito e quem eu deleto?
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const currentArray = [ | |
{ id: 1, name: "John", phone: "123" }, | |
{ id: 2, name: "Jane", phone: "123" }, | |
{ id: 3, name: "Richard", phone: "123" }, | |
]; | |
const newArray = [ | |
{ id: 1, name: "John", phone: "456" }, | |
{ id: 3, name: "Richard", phone: "123" }, | |
{ name: "Bob", phone: "123" }, | |
]; | |
const newElements = newArray.filter((element) => !element.id); | |
console.log("Elementos Novos "); | |
console.table(newElements); | |
// Output: [{id: 4, name: 'Bob', phone: '123'}] | |
const deleteElements = currentArray.filter((currentElement) => { | |
return !newArray.some((newElement) => newElement.id === currentElement.id); | |
}); | |
console.log("Elementos Deletados "); | |
console.table(deleteElements); | |
// Output: [{id: 2, name: 'Jane', phone: '123'}] | |
const updateElements = newArray.filter((newElement) => { | |
return currentArray.find((currentElement) => { | |
return ( | |
newElement.id === currentElement.id && | |
(newElement.phone !== currentElement.phone || | |
newElement.name !== currentElement.name) | |
); | |
}); | |
}); | |
console.log("Elementos Atualizados "); | |
console.table(updateElements); | |
// Output: [{id: 1, name: 'John', phone: '456'}] | |
const notChangedElements = currentArray.filter((currentElement) => { | |
return ( | |
updateElements.every( | |
(updateElement) => updateElement.id !== currentElement.id | |
) && | |
newArray.find( | |
(newElement) => | |
newElement.id === currentElement.id && | |
(newElement.phone === currentElement.phone || | |
newElement.name === currentElement.name) | |
) | |
); | |
}); | |
console.log("Elementos Não Alterados "); | |
console.table(notChangedElements); | |
// Output: [{id: 3, name: 'Richard', phone: '123'}] |
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