Answers for "i want all the value if array is empty i"

javascript check if array is not empty

if (array === undefined || array.length == 0) {
    // array empty or does not exist
}

check if an array is empty javascript

if (!Array.isArray(array) || !array.length) {
  // array does not exist, is not an array, or is empty
  // ⇒ do not attempt to process array
}