integer

// usage
randBox.integer()
randBox.integer({ min: -20, max: 20 })

9007199254740991 is 2^53 - 1 and is the largest number value in JavaScript

Return a random integer.

range: -9007199254740991 to 9007199254740991

See: Largest number in JavaScript 

randBox.integer();
=> -1293235

Can optionally provide min and max.

randBox.integer({ min: -20, max: 20 })
=> -7

These min and max are inclusive, so they are included in the range. This means

randBox.integer({ min: -2, max: 2 })

would return either -2, -1, 0, 1, or 2.

// Specific case
-2 <= random number <= 2
 
// General case
min <= random number <= max