javascript - 合并两个具有不同键但相同值的无序对象？

Question

在 JavaScript 中合并 obj1 和 obj2 等对象以获取 obj3。

obj1 = [{fruit: 'watermelon', sweetness: 3},{fruit: 'banana', sweetness: 4},{fruit: 'apple', sweetness: 5}]
obj2 = [{fruit_name: 'apple', color: 'red'},{fruit_name: 'banana', color:'yellow'},{fruit_name: 'watermelon', color:'green'}]

obj3 = [{fruit_name: 'apple', color: 'red', sweetness: 5},{fruit_name: 'banana', color:'yellow', sweetness: 4},{fruit_name: 'watermelon', color:'green', sweetness: 3}]

Answer 1

不是通用解决方案，但足以满足您的情况:

var obj1 = [{fruit: 'watermelon', sweetness: 3},{fruit: 'banana', sweetness: 4},{fruit: 'apple', sweetness: 5}]
var obj2 = [{fruit_name: 'apple', color: 'red'},{fruit_name: 'banana', color:'yellow'},{fruit_name: 'watermelon', color:'green'}]

var obj3 = obj2.map(o => Object.assign({}, o, {'sweetness': obj1.find(p => p.fruit === o.fruit_name).sweetness}))

console.log(obj3)