Created
May 6, 2017 17:19
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Save refayathaque/beebcfa51aabff39665951c24ac4b5de to your computer and use it in GitHub Desktop.
JS Bin // source https://jsbin.com/tatoku
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <meta name="viewport" content="width=device-width"> | |
| <title>JS Bin</title> | |
| </head> | |
| <body> | |
| <script id="jsbin-javascript"> | |
| function creditCard(arr) { | |
| lastDigit = arr[arr.length - 1]; | |
| m_arr = []; | |
| m_arr_sum = 0; | |
| for(var x = arr.length - 1; x >= 0; x--) { | |
| if(x % 2 !== 0) | |
| { | |
| m_arr.push(arr[x]*2); | |
| } | |
| } | |
| for(var i = 0; i < m_arr.length; i++) { | |
| if(m_arr[i] > 9) | |
| { | |
| m_arr[i] = m_arr[i] - 9; | |
| } | |
| } | |
| for(var y = 0; y < m_arr.length; y++) { | |
| m_arr_sum += m_arr[y]; | |
| } | |
| m_arr_sum += lastDigit; | |
| if(m_arr_sum % 10 === 0) | |
| { | |
| console.log('Valid Credit Card'); | |
| } | |
| else | |
| { | |
| console.log('Invalid Credit Card'); | |
| } | |
| } | |
| creditCard([5, 2, 2, 8, 2]); | |
| } | |
| </script> | |
| <script id="jsbin-source-javascript" type="text/javascript">function creditCard(arr) { | |
| lastDigit = arr[arr.length - 1]; | |
| m_arr = []; | |
| m_arr_sum = 0; | |
| for(var x = arr.length - 1; x >= 0; x--) { | |
| if(x % 2 !== 0) | |
| { | |
| m_arr.push(arr[x]*2); | |
| } | |
| } | |
| for(var i = 0; i < m_arr.length; i++) { | |
| if(m_arr[i] > 9) | |
| { | |
| m_arr[i] = m_arr[i] - 9; | |
| } | |
| } | |
| for(var y = 0; y < m_arr.length; y++) { | |
| m_arr_sum += m_arr[y]; | |
| } | |
| m_arr_sum += lastDigit; | |
| if(m_arr_sum % 10 === 0) | |
| { | |
| console.log('Valid Credit Card'); | |
| } | |
| else | |
| { | |
| console.log('Invalid Credit Card'); | |
| } | |
| } | |
| creditCard([5, 2, 2, 8, 2]); | |
| }</script></body> | |
| </html> |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| function creditCard(arr) { | |
| lastDigit = arr[arr.length - 1]; | |
| m_arr = []; | |
| m_arr_sum = 0; | |
| for(var x = arr.length - 1; x >= 0; x--) { | |
| if(x % 2 !== 0) | |
| { | |
| m_arr.push(arr[x]*2); | |
| } | |
| } | |
| for(var i = 0; i < m_arr.length; i++) { | |
| if(m_arr[i] > 9) | |
| { | |
| m_arr[i] = m_arr[i] - 9; | |
| } | |
| } | |
| for(var y = 0; y < m_arr.length; y++) { | |
| m_arr_sum += m_arr[y]; | |
| } | |
| m_arr_sum += lastDigit; | |
| if(m_arr_sum % 10 === 0) | |
| { | |
| console.log('Valid Credit Card'); | |
| } | |
| else | |
| { | |
| console.log('Invalid Credit Card'); | |
| } | |
| } | |
| creditCard([5, 2, 2, 8, 2]); | |
| } |
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