find leap year by using javscript and html

javascript

"leap year" 

Input:- To find a leap year or not.

Output:-

Step 1. "enter any leap  year..."

 Step 2. "click on submit button". This is a final output:-

 

 2nd time

  Step 1. "enter non-leap year..."

 

 Step2:- "click on submit button"then final output is :-