JavaScript Built-in Constants Number constants
Example
The Number constructor has some built in constants that can be useful
Number.MAX_VALUE; // 1.7976931348623157e+308 Number.MAX_SAFE_INTEGER; // 9007199254740991 Number.MIN_VALUE; // 5e-324 Number.MIN_SAFE_INTEGER; // -9007199254740991 Number.EPSILON; // 0.0000000000000002220446049250313 Number.POSITIVE_INFINITY; // Infinity Number.NEGATIVE_INFINITY; // -Infinity Number.NaN; // NaN
In many cases the various operators in Javascript will break with values outside the range of (Number.MIN_SAFE_INTEGER, Number.MAX_SAFE_INTEGER)
Note that Number.EPSILON represents the different between one and the smallest Number greater than one, and thus the smallest possible difference between two different Number values. One reason to use this is due to the nature of how numbers are stored by JavaScript see Check the equality of two numbers
