js 向數組對象中添加屬性和屬性值

let resultList = [{"name":"a1"},{"name":"b1"}]
resultList.forEach(tem => {
    tem.age = 1;
})

循環向數組resultlist中添加age屬性

let resultList = [{"name":"a1","shapes":[{"age":12,"sex":"female"}]},{"name":"b1","shapes":[{"age":10,"sex":"male"}]}]
resultList.forEach(item => {
    item.shapes.forEach(tem => {
        tem.class = "1";
    })
})

向數組中的子屬性添加屬性

var jsonStr = JSON.stringify(resultList);//將JSON對象轉化為JSON字符

或者var jsonStr=resultList.toJSONString(); //將JSON對象轉化為JSON字符(需要json包的支持，提示錯誤可以檢查json包版本是否有點低)