Answers for "check if array is empty or null"

javascript check if array is empty

if (typeof array !== 'undefined' && array.length === 0) {
    // the array is defined and has no elements
}

check if array is empty javascript

array.length = []

isempty for arrays

int arr[] = null;
if (arr == null) {
  System.out.println("array is null");
}