Simple Javascript only:  Convert a Hexadecimal array of numbers into decimal values. The decimal values should be treated as ASCII character codes and converted into characters. Return a string of those characters. See the MDN docs for `String.fromCharCode()` method for how to convert character codes into ASCII characters. https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/fromCharCode Examples: hexadecimalToString(['0x004a']) => 74 => "J" hexadecimalToString(['0x0041', '0x0042', '0x0043']) => 65, 66, 67 => "ABC" hexadecimalToString(['0x0048', '0x0065', '0x0078', '0x0061']) => 72, 101, 120, 97 => "Hexa".   function hexadecimalToString(hexadecimalChars){ }

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Array

The simplest way to start thinking about an array is as a collection, or a set of elements. In programming, these elements may be constants, variables, functions and pointers.