Object.fromEntries

Object.fromEntries(new URLSearchParams("q=apple&from=en&to=zh&appid=2015063000000001&salt=1435660288&sign=f89f9594663708c1605f3d736d01d2d4"))

Object.fromEntries(new Map(new URLSearchParams("q=apple&from=en&to=zh&appid=2015063000000001&salt=1435660288&sign=f89f9594663708c1605f3d736d01d2d4")))

class Ruben {
  constructor(data) {
    this.data = data
    this.dataArray = Object.entries(data)
  }

  [Symbol.iterator]() {
    // Use a new index for each iterator. This makes multiple
    // iterations over the iterable safe for non-trivial cases,
    // such as use of break or nested looping over the same iterable.
    let index = 0;

    return {
      next: () => {
        if (index < this.dataArray.length) {
          return {value: this.dataArray[index++], done: false}
        } else {
          return {done: true}
        }
      }
    }
  }
}

[...new Ruben({
    "q": "apple",
    "from": "en",
    "to": "zh",
    "appid": "2015063000000001",
    "salt": "1435660288",
    "sign": "f89f9594663708c1605f3d736d01d2d4"
})]

Object.fromEntries(new Ruben({
    "q": "apple",
    "from": "en",
    "to": "zh",
    "appid": "2015063000000001",
    "salt": "1435660288",
    "sign": "f89f9594663708c1605f3d736d01d2d4"
}))

for (let i of  new Ruben({
    "q": "apple",
    "from": "en",
    "to": "zh",
    "appid": "2015063000000001",
    "salt": "1435660288",
    "sign": "f89f9594663708c1605f3d736d01d2d4"
}))console.log(i)

class SimpleClass {
  constructor(data) {
    this.data = data
  }

  [Symbol.iterator]() {
    let index = 0;
    return {
      next: () => {
        return {value: index++}
      }
    }
  }
}

[...new SimpleClass()]

function idMaker() {
    let index = 0;
    return {
       next: function() {
           return {
               value: index++,
               done: false
           };
       }
    };
}

let it = idMaker();

console.log(it.next().value); // '0'
console.log(it.next().value); // '1'
console.log(it.next().value); // '2'

Object.entries({
    "q": "apple",
    "from": "en",
    "to": "zh",
    "appid": "2015063000000001",
    "salt": "1435660288",
    "sign": "f89f9594663708c1605f3d736d01d2d4"
})