[removed] nice human readable join of list

Question

Having a list (array) of tags [\'tag1\', \'tag2\', \'tag3\'] I want to generate a nice title like: Content tagged tag1, tag2 and tag3.

For the

Answer 1

An array can be treated as a stack so you can pop the last element and in turn write this

var last = tags_titles.pop();
last = tags_titles.length ? ` and ${last}` : last;
`Content tagged ${tags_titles.join(", ")} ${last}`

The code uses ES6 string templates, which I generally find to be more readable than doing string concatenation in the code. It also utilizes the fact that the pop method essentially performs to operations. Gets the lasst element of the array and mutate the array. That eliminate the need to do the mutation explicitly (using slice)