/**
* @function isSortedArray
* @description Checks if the array is sorted.
* @param {number[]} arr - array to check if it is sorted
* @returns {boolean} - true if the array is sorted and false if it's not sorted
* @example isSortedArray([1,2,3]) => true
* @example isSortedArray([9,2,3]) => false
*/
export function isSortedArray(arr: number[]): boolean {
for (let i = 0; i < arr.length - 1; i++) {
if (arr[i] >= arr[i + 1]) {
return false
}
}
return true
}