Function isUOM

isUOM(uom: unknown): uom is Uom

Type guard to validate if a value is a valid UOM. Checks if the value is a string and if it is in the UOM array.

Parameters

uom: unknown
The value to validate

Returns uom is Uom

Type predicate indicating if the value is a valid UOM

Example

// Valid UOM
const validUOM = "g";
if (isUOM(validUOM)) {
  console.log('Valid UOM:', validUOM);
}

// Invalid UOM
const invalidUOM = 123; // Number instead of string
if (!isUOM(invalidUOM)) {
  console.log('Invalid UOM:', invalidUOM);
}

Source

export function isUOM(uom: unknown): uom is Uom {
  // Widen the enum-value array to string[] so includes() accepts an arbitrary string.
  return typeof uom === 'string' && (Object.values(UOM) as string[]).includes(uom);
}