Use strict types

index.js

@@ -13,7 +13,7 @@ const ltr = new RegExp('^[^' + rtlRange + ']*[' + ltrRange + ']')
  * Detect direction.
  *
  * @param {string} value
- * @returns {'rtl' | 'ltr' | 'neutral'}
+ * @returns {'rtl'|'ltr'|'neutral'}
  */
 export function direction(value) {
   const source = String(value || '')

package.json

@@ -46,11 +46,11 @@
     "xo": "^0.46.0"
   },
   "scripts": {
-    "prepack": "npm run build && npm run format",
+    "prepublishOnly": "npm run build && npm run format",
     "build": "rimraf \"*.d.ts\" && tsc && type-coverage",
     "format": "remark . -qfo && prettier . -w --loglevel warn && xo --fix",
-    "test-api": "node test.js",
-    "test-coverage": "c8 --check-coverage --branches 100 --functions 100 --lines 100 --statements 100 --reporter lcov node test.js",
+    "test-api": "node --conditions development test.js",
+    "test-coverage": "c8 --check-coverage --branches 100 --functions 100 --lines 100 --statements 100 --reporter lcov npm run test-api",
     "test": "npm run build && npm run format && npm run test-coverage"
   },
   "prettier": {
@@ -72,6 +72,7 @@
   "typeCoverage": {
     "atLeast": 100,
     "detail": true,
-    "strict": true
+    "strict": true,
+    "ignoreCatch": true
   }
 }

test.js

@@ -1,3 +1,4 @@
+import assert from 'node:assert'
 import fs from 'node:fs'
 import childProcess from 'node:child_process'
 import {PassThrough} from 'node:stream'
@@ -72,6 +73,7 @@ test('cli', function (t) {
     }
   )
 
+  assert(subprocess.stdin, 'expected stdin')
   input.pipe(subprocess.stdin)
   input.write('لة')
   setImmediate(function () {

tsconfig.json

@@ -1,5 +1,4 @@
 {
-  "files": ["index.js"],
   "include": ["*.js"],
   "compilerOptions": {
     "target": "ES2020",
@@ -11,6 +10,7 @@
     "declaration": true,
     "emitDeclarationOnly": true,
     "allowSyntheticDefaultImports": true,
-    "skipLibCheck": true
+    "skipLibCheck": true,
+    "strict": true
   }
 }