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| author | Mohammad S Anwar <mohammad.anwar@yahoo.com> | 2023-07-31 08:20:52 +0100 |
|---|---|---|
| committer | Mohammad S Anwar <mohammad.anwar@yahoo.com> | 2023-07-31 08:20:52 +0100 |
| commit | e511966ce2280dbedb2c916d9e6254708800639e (patch) | |
| tree | ec68ba68a94397b235ed3a32600eb789ef0dbe4d /challenge-228/steven-wilson/javascript | |
| parent | e7ea2936074c0b4d0d4f7a2f777f508404a58181 (diff) | |
| download | perlweeklychallenge-club-e511966ce2280dbedb2c916d9e6254708800639e.tar.gz perlweeklychallenge-club-e511966ce2280dbedb2c916d9e6254708800639e.tar.bz2 perlweeklychallenge-club-e511966ce2280dbedb2c916d9e6254708800639e.zip | |
- Added template for week 228.
Diffstat (limited to 'challenge-228/steven-wilson/javascript')
| -rw-r--r-- | challenge-228/steven-wilson/javascript/ch-01.html | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/challenge-228/steven-wilson/javascript/ch-01.html b/challenge-228/steven-wilson/javascript/ch-01.html new file mode 100644 index 0000000000..7151dac4f3 --- /dev/null +++ b/challenge-228/steven-wilson/javascript/ch-01.html @@ -0,0 +1,45 @@ +<!DOCTYPE HTML> +<html> +<title>The Weekly Challenge - Week 227 Task 1: Friday 13th</title> +<body> + + <script> + "use strict"; + + const weekday = [ "Sunday", "Monday", "Tuesday", "Wednesday", + "Thursday", "Friday" ,"Saturday" ]; + + const friday_13ths = new Map(); + friday_13ths.set( "Sunday", [ 2, 2 ] ); + friday_13ths.set( "Monday", [ 2, 2 ] ); + friday_13ths.set( "Tuesday", [ 2, 1 ] ); + friday_13ths.set( "Wednesday", [ 1, 2 ] ); + friday_13ths.set( "Thursday", [ 3, 2 ] ); + friday_13ths.set( "Friday", [ 1, 1 ] ); + friday_13ths.set( "Saturday", [ 1, 1 ] ); + + function unlucky_days( year ) { + let first_day_of_year = new Date( year, 0, 1 ); + let name_of_day = weekday[first_day_of_year.getDay()] + let is_leap_year = (new Date( year, 1, 29 ).getDate() === 29) ? 1: 0; + return friday_13ths.get(name_of_day)[is_leap_year]; + } + + function update(){ + let year = document.getElementById("year").value; + let number_of_days = unlucky_days( year ); + let result_text = `${ year } has ${ number_of_days } Friday 13th(s).`; + document.getElementById("result").innerHTML = result_text; + document.getElementById("year").value = ""; + } + </script> + + <p>Enter a year between 1753 and 9999:</p> + <form onsubmit="update(); return false"> + <input type="number" id="year" min="1753" max="9999" value="2023" required /> + <input type="submit"> + </form> + <p id=result><p> +</body> + +</html>
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