FileUpload represents an element that allows a user to specify a file to be uploaded or submitted along with the form. The FileUpload object is a Browser object and is used to access the above FileUpload element of a form. Thus, the FileUpload object allows the user to give any file as input. If a user wants to access the FileUpload object then he or she can using the indexing concept on the elements array. The user can make use of each element inside the form that is stored as an array element within the array named elements [].
Right(str, n): Returns 'n' number of Characters starting from the Right of the string(towards the left) 'str'.
Note: Use "Right" and not "right"(lower case) while calling the function.
Regular expressions are calculated the same way as other JavaScript expressions, that is to say with account of operations priority: the operations with higher priority are performed first. If the operations have equal priority, they are performed from left to right. In the following table the operations of regular expressions are listed in descending order of their priority. The operations located in one chain have equal priority.
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