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JavaScript program to check if a given year is leap year
To check if a given year is leap year or not using JavaScript, the code is as follows −
Example
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> <title>Document</title> <style> body { font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif; } .result { font-size: 18px; font-weight: 500; color: blueviolet; } </style> </head> <body> <h1>Check Leap year or not</h1> Enter the year<input class="year" type="text" /> <button class="Btn">CHECK</button> <div class="result"></div> <h3>Click on the above button check if the year above is leap year or not</h3> <script> let resultEle = document.querySelector(".result"); let yearEle = document.querySelector(".year"); document.querySelector(".Btn").addEventListener("click", () => { if (yearEle.value % 4 == 0) { resultEle.innerHTML = yearEle.value + " is a leap year "; } else resultEle.innerHTML = yearEle.value + " is not a leap year"; }); </script> </body> </html>
Output
On entering year and clicking on ‘CHECK’ button −
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