Question 200232 in Javascript Question posted in
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Javascript – Keyword Declaration

Asked to:

‘Iterate through the staff nested inside the restaurant object, and add their names to the staffNames array.’

My solution keeps getting rejected with this error:

‘Use a declaration keyword when declaring your key variable’

Feel like I’m going mad as I’ve definitely declared the variable.

Code below, what I added is in bold; the rest is the original code.

const restaurant = {
  tables: 32,
  staff: {
    chef: "Andy",
    waiter: "Bob",
    manager: "Charlie"
  },
  cuisine: "Italian",
  isOpen: true
};

const staffNames = []

**for (key in restaurant.staff){
  const value = restaurant.staff[key]
  staffNames.push(value)
}**
Tags:

3

Answers


  1. 0

    Feel like I’m going mad as I’ve definitely declared the variable.

    You haven’t. You’ve just started assigning values to it.

    To declare a variable you need to use a keyword like const or let (or var, which isn’t recommended these days, or a function declaration which wouldn’t be appropriate here.)

    for (let key in restaurant.staff){

    Aside: Your code would probably be better written as:

    const staffNames = Object.values(restaurant.staff);
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  2. 0

    You need to declare the variable key in your for loop. Try this:

    const restaurant = {
  tables: 32,
  staff: {
    chef: "Andy",
    waiter: "Bob",
    manager: "Charlie"
  },
  cuisine: "Italian",
  isOpen: true
};

const staffNames = [];

for (let key in restaurant.staff) {
  const name = restaurant.staff[key];
  staffNames.push(name);
}
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  3. 0

    Working fine!

    const restaurant = {
  tables: 32,
  staff: {
    chef: "Andy",
    waiter: "Bob",
    manager: "Charlie"
  },
  cuisine: "Italian",
  isOpen: true
};

const staffNames = []

for (let key in restaurant.staff) {
  const value = restaurant.staff[key]
  staffNames.push(value)
}

console.log(staffNames);
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