satan87 · June 18, 2020 15:11
diff --git a/Medium_Filter_01.swift b/Medium_Filter_01.swift
 // MARK: IF FILTER
 var bookBefore2000 = [Book]()
 for book in books {
    if book.year < 2000 {
        bookBefore2000.append(book)
    }
 }
	// MARK: IF FILTER
	var bookBefore2000 = [Book]()
	for book in books {
	if book.year < 2000 {
	bookBefore2000.append(book)
	}
	}