如何将javascript对象转置为键/值数组

Question

给定一个JavaScript对象，如何将其转换为对象数组（每个对象都有键，值）？

例：

var data = { firstName: 'John', lastName: 'Doe', email: '[e-mail]' }

结果像：

[

  { key: 'firstName', value: 'John' },

  { key: 'lastName', value: 'Doe' },

  { key: 'email', value: '[e-mail]' }

]

Answer 1

var data = { firstName: 'John', lastName: 'Doe', email: '[e-mail]' }var output = Object.entries(data).map(([key, value]) => ({key,value}));console.log(output);受此职位启发

Answer 2

使用map功能var data = { firstName: 'John', lastName: 'Doe', email: '[e-mail]' };var result = Object.keys(data).map(key => ({ key, value: data[key] }));console.log(result);    

Answer 3

您可以仅遍历对象的属性，并为每个属性创建一个新对象。var data = { firstName: 'John', lastName: 'Doe', email: '[e-mail]' };var result = [];for(var key in data){    if(data.hasOwnProperty(key))    {        result.push({            key: key,            value: data[key]        });    }}