將路徑參數驗證為對象數組

Question

說用戶可以轉到此處example.com/?page=1&q=123

我可以得到[{page: 1}, {q: 123}]

使用圖書館

但是說我想對某些東西使用[{page: 1}]仍然很危險，因為用戶可以輸入我不需要的額外參數。

所以我的想法是我提供一個預置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遍歷數組並檢查返回鍵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)