refactor

src/type-flag.ts

@@ -9,7 +9,6 @@ import {
  normalizeBoolean,
  applyParser,
  hasOwn,
- getOwn,
 } from './utils';
 import { argvIterator } from './argv-iterator';
 
@@ -53,10 +52,8 @@ export const typeFlag = <Schemas extends Flags>(
 
  argvIterator(argv, {
  onFlag(name, explicitValue, index) {
- const knownFlag = getOwn(flagRegistry, name);
-
- if (knownFlag) {
- const [parser, values] = knownFlag;
+ if (hasOwn(flagRegistry, name)) {
+ const [parser, values] = flagRegistry[name];
  const flagValue = normalizeBoolean(parser, explicitValue);
  const getFollowingValue = (value?: string | boolean) => {
  const parsedValue = applyParser(parser, value || '');

src/utils.ts

@@ -14,11 +14,6 @@ const camelToKebab = (string: string) => string.replace(camelCasePattern, '-$1')
 const { hasOwnProperty } = Object.prototype;
 export const hasOwn = (object: any, property: PropertyKey) => hasOwnProperty.call(object, property);
 
-export const getOwn = <ObjectType>(
- object: ObjectType,
- property: keyof ObjectType,
-) => (hasOwn(object, property) ? object[property] : undefined);
-
 /**
  * Default Array.isArray doesn't support type-narrowing
  * on readonly arrays.
@@ -113,17 +108,13 @@ export const createRegistry = (
  registry[name] = value;
  };
 
- // eslint-disable-next-line guard-for-in
  for (const flagName in schemas) {
- const schema = getOwn(schemas, flagName);
-
- // has-own check
- if (!schema) {
+ if (!hasOwn(schemas, flagName)) {
  continue;
  }
-
  validateFlagName(flagName);
 
+ const schema = schemas[flagName];
  const [parser, isArray] = parseFlagType(schema);
  const values: unknown[] = [];
  const asdf = [parser, values];