将键值对添加到所有对象

Question

我是Spring的新成员，我将一个对象转换为json以用于jsp页面。 json对象看起来像下面。

[ 
    {"year":2014,"average":115.5}, 
    {"year":2016,"average":0.0}, 
    {"year":2017,"average":8.28}, 
    {"year":2018,"average":0.0} 
] 

我需要另一个关键值对（“颜色”：值）添加每个对象像下面给出。

[ 
    {"year":2014,"average":115.5,"color":1}, 
    {"year":2016,"average":0.0,"color":2}, 
    {"year":2017,"average":8.28,"color":3}, 
    {"year":2018,"average":0.0,"color":4} 
] 

现在我传到页面，如何将这个键值对添加到每个对象在JavaScript中？

Answer 1

添加到您现有的对象，像这样：

var yourNewArray = yourOriginalArray.map(function(obj) { 
    var me = Object.assign({}, obj); 
    me.color = 'yourNewColorValue'; 
    return me; 
});