How to Convert Object into Query String ? | 點燈坊

If data is an Object, we can use Object.entries, map and join to convert Object into Query String.

Version

ECMAScript 2017

Object.entries

let params = {
  a: 1,
  b: 2,
  c: 3,
};

Object.entries(params)
  .map(([k, v]) => `${k}=${v}`)
  .join("&"); // ?

• Object.entries : get all keys and values at once into Array
• map : destructure key and value, and concatenate them to String
• join : join them together with &

Conclusion

• Although we can use Object.keys to convert Object into Query String, Object.entries is more concise