如果有日期和时间，如何显示日期？

var currentDate = new Date();
var formattedDate = currentDate.toLocaleDateString();
console.log(formattedDate);

import datetime

current_date = datetime.datetime.now()
formatted_date = current_date.strftime("%Y-%m-%d")
print(formatted_date)

import java.util.Date;
import java.text.SimpleDateFormat;

Date currentDate = new Date();
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
String formattedDate = dateFormat.format(currentDate);
System.out.println(formattedDate);

$currentDate = date("Y-m-d");
echo $currentDate;