Flatten Javascript array

Question

I have an array of objects like this:

let list = [
  {
    \'items\': [
      \'item 1\',
      \'item 2\'
    ]
  },
  {
    \'items\': [
      \'item 3\'
    ]         


        

Answer 1

you can use the Array.reduce method and follow the docs here

{
    let list = [
      {
        'items': [
          'item 1',
          'item 2'
        ]
      },
      {
        'items': [
          'item 3'
        ]
      }
    ];

    /**
    * @parameter {Array} arg
    */
    function splat (arg) {
        return arg.reduce((total, { items }) => [...total, ...items], []);
    }

    console.log(splat(list));
}

You could also play with recursive function to make a more generic function that accepts array of nested objects.