algorithm/JavaScript
1
0
Fork 0
mirror of https://github.com/TheAlgorithms/JavaScript.git synced 2025-07-06 17:50:39 +08:00
Code Issues Packages Projects Releases Wiki Activity

deleted checksums

Browse Source
This commit is contained in:
Alex Brown
2018-10-23 13:25:13 -05:00
parent f44fdc7dd0
commit 3e47ca62c0
1 changed files with 0 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
Checksums/luhn.js
View File

@ -1,16 +0,0 @@
function luhn(card_number) {
var sum_of_odds = 0;
var sum_of_evens = 0;
for (var i = 15; i > 0; i-=2) {
sum_of_odds += parseInt(card_number[i]);
}
for (var i = 14; i > -1; i-=2) {
var current_number = parseInt(card_number[i]);
if (parseInt(card_number[i])*2 > 9) {
sum_of_evens += (i*2)-9;
} else {
sum_of_evens += i*2;
}
}
return 0 === ((sum_of_odds + sum_of_evens) % 10);
}