按对象键合并对象数组

Question

鉴于上面的截图，我想通过“hand”属性合并这个数组，这样最终结果就是

[{hand: "KdAhAsKs", checkPct: 28, betPct: 72},{hand: "KcAhAsKs", checkPct: 28, betPct: 72}]

Answer 1

您可以使用array#reduce将每个唯一hand对应的对象中的公共属性累加，然后使用Object.values()取出所有值。

 const data = [{hand: "KdAhAsKs", checkPct: 28}, {hand: "KdAhAsKs", betPct: 72},{hand: "KcAhAsKs", checkPct: 28}, { hand: "KcAhAsKs", betPct: 72}], result = Object.values(data.reduce((r,{hand, ...rest}) => { r[hand] = r[hand] || {hand}; r[hand] = {...r[hand], ...rest}; return r; },{})); console.log(result);

Answer 2

你可以尝试这样的事情。 希望这可以帮助。

 const data = [{hand: "KdAhAsKs", checkPct: 28}, {hand: "KdAhAsKs", betPct: 72},{hand: "KcAhAsKs", checkPct: 28}, { hand: "KcAhAsKs", betPct: 72}]; const combine = (data) => data.reduce((acc, val) => { const i = acc.findIndex(o => o.hand === val.hand); if (i !== -1) { acc[i] = { ...acc[i], ...val }; return acc; } else return acc.concat(val); }, []); console.log(combine(data));