In Javascript, Math is a built-in object that has properties and methods for mathematical constants and functions.
max() and min() are static methods of Math, you always use it as Math.max(), Math.min()

The number arguments that min and max methods can take are zero or more

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Math.max([value1[, value2[, ...]]])
Math.min([value1[, value2[, ...]]])

All is well in the JS land if you give 1 or more parameters for both min and max methods. The tricky part is if you do not provide any parameter to these methods. Now why wouldn’t you provide any parameters to max/min methods, that’s altogether a different discussion. However, because the api allows the programmer to provide zero or more parameters, the result of such operation is well documented.

Math.max() gives -Infinity.
Math.min() gives Infinity.

This makes perfect sense, because if you are just providing one parameter to math and min methods the result is always the same as the input.

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Math.max()
-Infinity
 
Math.min()
Infinity
 
Math.max() > Math.min()
false
 
Math.max(1,3,2)
3
 
Math.min(1,3,2)
1
 
Math.max(2)
2
 
Math.min(2)
2
 
Math.max(3) > Math.min(1)
true
 
Math.max(1) > Math.min(3)
false
“For a given programming language the language specification will be your best resource to clear out the ambiguity in your understanding.”
-Rushi