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Add 'commas' separator between all array elements and 'and' before the last array element

TP answered on July 16, 2022 Popularity 1/10 Helpfulness 8/10

answer Add 'commas' separator between all array elements and 'and' before the last array element

Add 'commas' separator between all array elements and 'and' before the last array element

Comment

function listStrings(arr) {
  if (arr.length <= 1) {
    return arr[0] + ".";
  }
  return arr.slice(0, -1).join(", ") + " and " + arr.at(-1) + ".";
}

console.log(listStrings(['A', 'B', 'C', 'D']));
console.log(listStrings(['A', 'B']));
console.log(listStrings(['A']));
 Run code snippet

Popularity 1/10 Helpfulness 8/10 Language javascript

Source: stackoverflow.com

Tags: add between element elements javascript separator

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