feat(country-flag-icons): type definition (DefinitelyTyped#46177)

* feat(country-flag-icons): type definition

- definition files
- tests

https://www.npmjs.com/package/country-flag-icons
https://gitlab.com/catamphetamine/country-flag-icons/-/blob/master/README.md

Thanks!

* Update types/country-flag-icons/index.d.ts

Co-authored-by: Sheetal Nandi <[email protected]>

Co-authored-by: Sheetal Nandi <[email protected]>

Author: peterblazejewicz

types/country-flag-icons/commonjs/hasFlag.d.ts

@@ -0,0 +1 @@
+export default function hasFlag(country: string): boolean;

types/country-flag-icons/country-flag-icons-tests.ts

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+import { countries, hasFlag } from 'country-flag-icons';
+import getUnicodeFlagIcon from 'country-flag-icons/unicode';
+
+hasFlag('US'); // $ExpectType boolean
+hasFlag('ZZ'); // $ExpectType boolean
+countries; // $ExpectType string[]
+countries.includes('US'); // $ExpectType boolean
+countries.includes('ZZ'); // $ExpectType boolean
+getUnicodeFlagIcon('US'); // $ExpectType string
+getUnicodeFlagIcon('ZZ'); // $ExpectType string

types/country-flag-icons/index.d.ts

@@ -0,0 +1,7 @@
+// Type definitions for country-flag-icons 1.2
+// Project: https://gitlab.com/catamphetamine/country-flag-icons#readme
+// Definitions by: Piotr Błażejewicz <https://github.com/peterblazejewicz>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+export { default as hasFlag } from "./commonjs/hasFlag";
+export const countries: string[];

types/country-flag-icons/tsconfig.json

@@ -0,0 +1,23 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6", "ES2017"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictFunctionTypes": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "country-flag-icons-tests.ts"
+    ]
+}

types/country-flag-icons/tslint.json

@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }

types/country-flag-icons/unicode.d.ts

@@ -0,0 +1,6 @@
+/**
+ * Creates Unicode flag from a two-letter ISO country code.
+ * https://stackoverflow.com/questions/24050671/how-to-put-japan-flag-character-in-a-string
+ * @param  country — A two-letter ISO country code (case-insensitive).
+ */
+export default function getCountryFlag(country: string): string;