To output a specific property of each object in an array in JavaScript, you can use the map() method. Here's an example:

javascript
1
2
3
4
5
6
7
8
9
const array = [
  { name: 'John', age: 25 },
  { name: 'Jane', age: 30 },
  { name: 'Bob', age: 35 }
];

const propertyArray = array.map(obj => obj.propertyName);

console.log(propertyArray);

Replace propertyName with the actual name of the property you want to output. This code will create a new array (propertyArray) containing the values of the specified property from each object in the original array.

If you want to output the property of each object as a string, you can modify the code as follows:

javascript
1
2
3
4
5
6
7
8
9
const array = [
  { name: 'John', age: 25 },
  { name: 'Jane', age: 30 },
  { name: 'Bob', age: 35 }
];

const propertyString = array.map(obj => obj.propertyName).join(', ');

console.log(propertyString);

Replace propertyName with the actual name of the property you want to output. This code will create a string (propertyString) by joining the values of the specified property from each object in the original array with a comma and a space.

The space in .join(', ') is added to provide a visual separation between the values in the resulting string. It is not necessary and can be customized based on your preference.

For example, if you use .join(',') without a space, the resulting string would have values concatenated without any separation:

javascript
1
2
3
4
5
6
7
8
9
10
const array = [
  { name: 'John', age: 25 },
  { name: 'Jane', age: 30 },
  { name: 'Bob', age: 35 }
];

const propertyString = array.map(obj => obj.propertyName).join(',');

console.log(propertyString);
// Output: John,Jane,Bob

By adding a space after the comma in .join(', '), the resulting string would have values separated by a comma and a space:

javascript
1
2
3
4
5
6
7
8
9
10
const array = [
  { name: 'John', age: 25 },
  { name: 'Jane', age: 30 },
  { name: 'Bob', age: 35 }
];

const propertyString = array.map(obj => obj.propertyName).join(', ');

console.log(propertyString);
// Output: John, Jane, Bob

The choice of whether to include a space or not depends on the desired formatting of the resulting string.

If you want to have a line break instead of a space between the values in the resulting string, you can use the newline character (\n) in the .join() method. Here's an example:

javascript
1
2
3
4
5
6
7
8
9
const array = [
  { name: 'John', age: 25 },
  { name: 'Jane', age: 30 },
  { name: 'Bob', age: 35 }
];

const propertyString = array.map(obj => obj.propertyName).join('\n');

console.log(propertyString);

This code will create a string (propertyString) by joining the values of the specified property from each object in the original array with a line break. Each value will be on a new line in the resulting string.