Get a property value from each array element

Question

How can I get the contents of words from each element in the array?

[
  {
    words: ['help','good],
    glass: 'empty'
  },
  {
    words: ['low', 'cool'],
    glass: 'full'
  }
]

The expected result is:

[ 'help, 'good', 'low', 'cool' ]

Answer 1

With this input:

 const value = [ { words: ['help','good'], glass: 'empty' }, { words: ['low', 'cool'], glass: 'full' } ] const result = value.flatMap(e => e.words); document.body.innerText = JSON.stringify(result)

Answer 2

Try this:

 data = [{ words: ['help', 'good'], glass: 'empty' }, { words: ['low', 'cool'], glass: 'full' } ] words = [] data.forEach(function(dataSet) { words.push.apply(words, dataSet.words) }) console.log(words)

Answer 3

you could also use reduce if you want

 const data = [ { words: ['help','good'], glass: 'empty' }, { words: ['low', 'cool'], glass: 'full' } ] console.log(data.reduce((acc,val) => [...acc, ...val.words],[]))