What is Javascript Max Number?

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Javascript has Number.MAX_VALUE which represents the maximum number that Javascript could represent.  This number is 1.7976931348623157e+308 which is what this program outputs…

This is a very big number.  e+308 is scientific notation for 10 raised to the 308 power.  It is 1 with 308 zeros after it.

The thing to note is that if you add 18 to Number.MAX_VALUE, you still get Number.MAX_VALUE.

But if you do Number.MAX_VALUE * 2 you get Infinity, which is a Javascript number type.  Go figure.

 

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