src/parseCron.js
function getValue(value, offset = 0, max = 9999) {
  return isNaN(value) ? NAMES[value] || null : Math.min(+value + (offset), max);
}
function getValue(value, offset = 0, max = 9999) {
  return isNaN(value) ? NAMES[value] || null : Math.min(+value + (offset), max);
}
function getValue ( value , offset = 0 , max = 9999 ) { return isNaN ( value ) ? NAMES [ value ] || null : Math . min ( + value + ( offset ) , max ) ; }
Returns the value + offset if value is a number, otherwise it
attempts to look up the value in the NAMES table and returns
that result instead.

@param {Number,String} value: The value that should be parsed
@param {Number=} offset: Any offset that must be added to the value
@param {Number=} max
@returns {Number|null}
Returns the value + offset if value is a number otherwise it attempts to look up the value in the NAMES table and returns that result instead .