JSON.parse 无双引号如何实现转换

    let a= "{id: 1, name:test, gender: 男,}";    let fixed_a = a          .replace(/(['"])?(\d{4})-(\d{1,2})-(\d{1,2})?\s*,/g, '"$2-$3-$4",')          // 通过@colon@替换“:”，防止日期格式报错          .replace(/(['"])?(\d{4})-(\d{1,2})-(\d{1,2})\s+(\d{1,2}):(\d{1,2}):(\d{1,2})(['"])?\s*,/g, '"$2-$3-$4 $5@colon@$6@colon@$7",')          .replace(/(['"])?([a-z0-9A-Z\u4e00-\u9fa5_]+)(['"])?\s*:/g, '"$2": ')          .replace(/:\s*(['"])?([a-z0-9A-Z\u4e00-\u9fa5_]+)(['"])?\s*,/g, ': "$2",')          .replace(/@colon@/g, ":")          .replace(/:\s*,/g, `:"",`)          .replace(/:\s*,\s*}/g, `:""}`)          .replace(/:\s*,\s"/g, `:"","`)          .replace(/:\s*,\s'/g, `:"",'`)          .replace(/,\s*}/g, "}");    let obj = JSON.parse(fixed_a);    console.log(obj);