How do I check if 'key' is correctly populated with 'known' values in JSON file

Question

I am trying to check if a particular key is assigned with only a set of values. This values are listed as an enum in Typescript.

P

Answer 1

I achieved this with the following code:

enum Regions {
NA = "na",
EMEA = "emea",
APAC = "apac"
}

const possibleRegions = [Regions.NA, Regions.EMEA, Regions.APAC];

private isValidRegion(value) 
{
    return value !== null && value.Region !== null && possibleRegions.indexOf(value.Region) > -1;
}