typs.js
// checks if obj is positive or negative
checks if obj is positive or negative
checks if obj is positive or negative
positive () {
		return this.number().matchesAny([
			typs().equals(0),
			typs().greater(0)
		])
	}
positive ( ) { return this . number ( ) . matchesAny ( [ typs ( ) . equals ( 0 ) , typs ( ) . greater ( 0 ) ] ) }
checks if obj is positive or negative
checks if obj is positive or negative