Method IsNumber

lua.go:683–686

IsNumber verifies that the value at index is a number. http://www.lua.org/manual/5.2/manual.html#lua_isnumber

(index int)

//
// http://www.lua.org/manual/5.2/manual.html#lua_isnumber
func (l *State) IsNumber(index int) bool {
	_, ok := l.toNumber(l.indexToValue(index))
	return ok
}

// IsString verifies that the value at index is a string, or a number (which
// is always convertible to a string).