11 lines
123 B
JavaScript
11 lines
123 B
JavaScript
"use strict;"
|
|
|
|
let bookId = 0;
|
|
|
|
function genNewBookId() {
|
|
bookId++;
|
|
return bookId;
|
|
}
|
|
|
|
console.log(genNewBookId());
|