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dharmayejju/Mask credit card numbers except last 4 digits

Created November 19, 2018 14:37
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Mask credit card numbers except last 4 digits
//Masking inputs including char and digits
str = str.replace(/[a-zA-Z0-9-](?=[a-z0-9A-Z-]{4})/g, '*');
//Masking just digits
str = str.replace(/\d(?=\d{4})/g, "*");
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