数组结构转为对象?-灵析社区

let arr = [ { num: '2', text: 'aaa', quantity: 1 }, { num: '1', text: 'bbb', quantity: 2 }, { num: '2', text: 'ccc', quantity: 1 }, { num: '2', text: 'ddd', quantity: 1 }, { num: '1', text: 'eee', quantity: 1 } ]; let obj = {}; // 遍历数组并将条目按照num属性值分组 arr.forEach(item => { const num = item.num; const answer = item.text; const quantity = item.quantity; if (!obj[num]) { obj[num] = []; } obj[num].push({ answer, quantity }); }); // 输出结果 console.log(obj);