将路径参数验证为对象数组

Question

说用户可以转到此处example.com/?page=1&q=123

我可以得到[{page: 1}, {q: 123}]

使用图书馆

但是说我想对某些东西使用[{page: 1}]仍然很危险，因为用户可以输入我不需要的额外参数。

所以我的想法是我提供一个预置const preset = [{page: 1}, {valid: true}]

我如何[{page: 1}, {valid: true}] from says [{page: 1}, {valid: true}, {abc: 123}, {other: 'others'}] ？

Answer 1

 var arr = [{page: 1}, {valid: true}, {abc: 123}, {other: 'others'}]; var result = arr.filter(x => Object.keys(x).includes('page') || Object.keys(x).includes('valid')); console.log(result); 

Answer 2

使用filter和Object.keys遍历数组并检查返回键obj

 const mixArray = [{page: 1}, {valid: true}, {abc: 123}, {other: 'others'}]; function filterRequiredObj(arr=[],filters=[]){ return arr.filter((f)=>{ const keys= Object.keys(f)[0]; if(filters.includes(keys)) return f }) } const newArray = filterRequiredObj(mixArray,['page','valid']) console.log('newArray',newArray)