How to use javascript to determine if it is a leap year

How to use javascript to determine whether it is a leap year: 1. Create a js sample file; 2. Pass "function isLeap(year) {if((year%4==0&&year 0!=0)|| (year@0==0)){...}" determines whether it is a leap year.

The operating environment of this article: Windows 7 system, javascript version 1.8.5, DELL G3 computer

How to use javascript to determine whether it is a leap year?

JS determines whether it is a leap year

Conditions for determining whether it is a leap year (one of the two is met):

1. Year Can be divisible by 4, but not divisible by 100

2. The year can be divisible by 400

//判断是否为闰年
function isLeap(year) {
    if((year%4==0 && year%100!=0)||(year%400==0)){
        return 1;
    }
    return 0;
}
alert(isLeap(2019));//0
alert(isLeap(2020));//1
 
//若为闰年，返回1，反之则返回0

Recommended study: "js Basic Tutorial"

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