How does javascript judge whether this year is a leap year?
This article mainly introduces "how to judge whether this year is a leap year by javascript". In daily operation, I believe many people have doubts about how to judge whether this year is a leap year by javascript. The editor has consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful to answer the doubts about "how to judge whether this year is a leap year by javascript". Next, please follow the editor to study!
Judgment method: 1, use the "new Date (). GetFullYear ()" statement to get the current year; 2, use the "year% 4 years 0 years & year 0 years 0 years" statement to determine whether the current year is a leap year, if you return true, it is a leap year, if you return false, it is not a leap year.
The operating environment of this tutorial: windows7 system, javascript1.8.5 version, Dell G3 computer.
Javascript judges whether this year is a leap year.
First we need to get the current year, using the Date object and getFullYear ().
Var myDate = new Date (); var Year = myDate.getFullYear (); / / abbreviation: var Year = new Date () .getFullYear ()
Then determine whether the obtained year is a leap year.
A year divisible by 4 but not divisible by 100 is a leap year.
Syntax:
Year% 4 years 0 years
If you return true, it is a leap year, and if you return false, it is not a leap year.
Add an if statement to select the output information.
If (4 years years 0 years years 0 years 0) {console.log (year+ "is a leap year");} else {console.log (year+ "not a leap year");}
OK, done!
Complete code:
Var year=new Date (). GetFullYear (); if (year4 years 0) {console.log (year+ "is a leap year");} else {console.log (year+ "not a leap year");}
At this point, the study on "how to judge whether this year is a leap year by javascript" is over. I hope to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!
