Question: Write a function makeNumber ( ) that takes a string as a parameter and returns the number produced by concatenating all the digits that appear

Write a function makeNumber() that takes a string as a parameter and returns the number
produced by concatenating all the digits that appear in the string. If the string does not contain
any digits or an empty string is provided as a parameter, the value 0 should be returned. If a digit
appears in the string multiple times, it will appear in number produced multiple times. The
following shows several sample executions of the function:

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