将同一数组内的多个对象合并为一个对象[重复]

如果您的环境支持

Object.assign

const arrObj = [{a: 1, b: 2}, {c: 3, d: 4}, {e: 5, f: 6}];console.log(arrObj.reduce(function(result, current) {  return Object.assign(result, current);}, {}));// If you prefer arrow functions, you can make it a one-liner ;-)console.log(arrObj.reduce(((r, c) => Object.assign(r, c)), {}));// Thanks Spen from the comments. You can use the spread operator with assignconsole.log(Object.assign({}, ...arrObj));

ES5解决方案：

您可以使用

Array.prototype.reduce

var resultObject = arrObj.reduce(function(result, currentObject) {    for(var key in currentObject) {        if (currentObject.hasOwnProperty(key)) { result[key] = currentObject[key];        }    }    return result;}, {});console.log(resultObject);# { a: 1, b: 2, c: 3, d: 4, e: 5, f: 6 }

此解决方案仅将的所有键及其值收集在中的每个对象中

result

这张支票

if (currentObject.hasOwnProperty(key)) {

有必要确保我们在结果中不包括所有继承的可枚举属性。