Coşku Demirhan demirhancosku
DiegoSalazar
/ validate_credit_card.js
Last active
February 21, 2025 13:22
Luhn algorithm in Javascript. Check valid credit card numbers
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| // Takes a credit card string value and returns true on valid number | |
| function valid_credit_card(value) { | |
| // Accept only digits, dashes or spaces | |
| if (/[^0-9-\s]+/.test(value)) return false; | |
| // The Luhn Algorithm. It's so pretty. | |
| let nCheck = 0, bEven = false; | |
| value = value.replace(/\D/g, ""); | |
| for (var n = value.length - 1; n >= 0; n--) { |
nseo
/ upload2facebook
Created
June 11, 2012 14:07
A sample code to upload an image file to facebook using Facebook javascript sdk
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| <!DOCTYPE html> | |
| <html lang="ja"> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>Hello FB</title> | |
| </head> | |
| <body> | |
| <div id="fb-root"></div> | |
| <div id="fb-content"></div> | |
| <div> |