Please tell me, how to create a function that multiplies all numeric properties of an Object by 2

Question

Create a function multiplyNumeric(objectExample) that multiplies all numeric properties of objectExample by 2. Where may be my mistake?

let objectExample = {
    width: 200,
    height: 300,
    title: 'example'
}

let multiplyNumeric = (key, object) => {
    for (let key in object) {
        if (typeof object.key === 'number') {
            object.key *= 2;
        }
    }
}

multiplyNumeric(objectExample);

console.log(objectExample);

Thank You very much.

`object.key` is looking for `{ "key" : 'xxx' }` You need bracket notation https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Property_Accessors — epascarello, May 04 '20 at 13:54

score 2 · Answer 1 · answered May 04 '20 at 14:02

2

let objectExample = {
  width: 200,
  height: 300,
  title: 'example'
}

let multiplyNumeric = obj => {
  for (let [key, value] of Object.entries(obj)) {
    if (typeof value === 'number') {
      obj[key] = value * 2;
    }
  }
}

multiplyNumeric(objectExample);
console.log(objectExample);

answered May 04 '20 at 14:02

Daan

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Thank you very much. – Mihai Goncear May 04 '20 at 14:08

Please tell me, how to create a function that multiplies all numeric properties of an Object by 2

1 Answers1