Javascript comma list but has an and at the last one

Question

I am trying to create a function that will take a list of words -- and covert it into a sentence like this.

jsfiddle

http://jsfiddle.net/0ht35rpb/107/

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Answer 1

One way is to pop off the last item, and then join and place the last item within the sting

function grammarCheck(vals) {
      //x,y,z and d
      //z
      var count = vals.length;

      var last = vals.pop()
      
      var text = vals.join(', ') + (vals.length > 1 ? ' and ' : '') + last

      return text
    }
    
    
    var arr = [
          ["emotional distress"],
          ["abc", "123", "blah", "blah", "blah"]
    ]
    
    arr.forEach(a => console.log('grammar check', grammarCheck(a)))