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Commits on Jul 10, 2018
  1. Check if characters are digits for EAN_13, EAN_8, ITF and UPC_EAN_EXT…

    keoni29 authored and srowen committed Jul 10, 2018
    …ENSION (#1039)
    
    * Check if characters are digits
    
    * Use regex to check if input is valid. Added tests
    
    * Create checkNumeric method
    
    * Remove unused locals, moved attributes to top of class.
    
    * Simplify testcase
    
    * Reduce repeated code
    
    * Fixed indentation