import isnumber from "./isnumber";
import { ERRORTYPES as error } from "./error";
import numVal from "./numbervalue";Copyright 2015-2021 JC Fisher
import isnumber from "./isnumber";
import { ERRORTYPES as error } from "./error";
import numVal from "./numbervalue";Invert a value.
export default function minus(value) {type casting.
let val = numVal(value);Return #VALUE! if either val is not a number.
if (!isnumber(val)) {
return error.value;
}Return the number value.
return -val;
}