// Initialize an array equivalent to std::vector in C++
let arr: number[] = [8, 9, 6, 7, 12, 86];
// Check if the array is not empty
if (arr.length > 0) {
// Remove the first element
arr.shift();
}
// Print the updated array
console.log(arr.join(" "));
/*
run:
"9 6 7 12 86"
*/