offers我有一個(gè)包含如下對(duì)象的數(shù)組：{     sellItem: {        id: _,         quantity: _    },     buyItem: {        id: _,         quantity: _    },     volume: _}我想找到重復(fù)項(xiàng) - 意思是具有相同“銷(xiāo)售 ID”和“購(gòu)買(mǎi) ID”的報(bào)價(jià)。我還想在原始“優(yōu)惠”數(shù)組中記錄這些項(xiàng)目的索引。我嘗試這樣做了 2 天，但沒(méi)有成功，因?yàn)槲野l(fā)現(xiàn)很難用可管理的行數(shù)來(lái)寫(xiě)我想做的事情。StackOverflow 上的其他問(wèn)題只涉及一個(gè)對(duì)象，而不是嵌套對(duì)象。我的offers數(shù)組的示例：{sellItem: {id: Pizza, quantity: 2}, buyItem: {id: Dollar, quantity: 1}, volume: 1}{sellItem: {id: Pizza, quantity: 3}, buyItem: {id: Dollar, quantity: 2}, volume: 1}{sellItem: {id: Banana, quantity: 2}, buyItem: {id: Pound, quantity: 1}, volume: 1}{sellItem: {id: Apple, quantity: 2}, buyItem: {id: Euro, quantity: 1}, volume: 1}{sellItem: {id: Pizza, quantity: 5}, buyItem: {id: Dollar, quantity: 3}, volume: 1}這里的預(yù)期結(jié)果是：0: Selling 2x Pizza for 1x Dollar1: Selling 3x Pizza for 2x Dollar4: Selling 5x Pizza for 3x Dollar“優(yōu)惠”數(shù)組中的所有其他條目都應(yīng)忽略，因?yàn)樗鼈儾皇侵貜?fù)的優(yōu)惠。