Add strict to tsconfig.json

index.js

@@ -25,35 +25,25 @@ const markerExpression = new RegExp(
 
 /**
  * Parse a comment marker.
- * @param {unknown} node
+ * @param {unknown} value
  * @returns {Marker|null}
  */
-export function commentMarker(node) {
-  if (
-    node &&
-    typeof node === 'object' &&
-    // @ts-ignore hush
-    (node.type === 'html' || node.type === 'comment')
-  ) {
-    // @ts-ignore hush
-    const match = node.value.match(
-      // @ts-ignore hush
-      node.type === 'comment' ? commentExpression : markerExpression
+export function commentMarker(value) {
+  if (applicable(value)) {
+    const match = value.value.match(
+      value.type === 'comment' ? commentExpression : markerExpression
     )
 
-    // @ts-ignore hush
-    if (match && match[0].length === node.value.length) {
-      // @ts-ignore hush
-      const offset = node.type === 'comment' ? 1 : 2
+    if (match && match[0].length === value.value.length) {
+      const offset = value.type === 'comment' ? 1 : 2
       const parameters = parseParameters(match[offset + 1] || '')
 
       if (parameters) {
         return {
           name: match[offset],
           attributes: match[offset + 2] || '',
           parameters,
-          // @ts-ignore hush
-          node
+          node: value
         }
       }
     }
@@ -106,3 +96,17 @@ function parseParameters(value) {
     return ''
   }
 }
+
+/**
+ * @param {unknown} value
+ * @returns {value is HtmlNode | CommentNode}
+ */
+function applicable(value) {
+  return Boolean(
+    value &&
+      typeof value === 'object' &&
+      'type' in value &&
+      // @ts-expect-error hush
+      (value.type === 'html' || value.type === 'comment')
+  )
+}

test.js

@@ -8,6 +8,7 @@ import test from 'tape'
 import {commentMarker} from './index.js'
 
 test('commentMaker(node)', (t) => {
+  // @ts-expect-error: runtime: not enough arguments.
   t.equal(commentMarker(), null, 'should work without node')
 
   /** @type {Paragraph} */

tsconfig.json

@@ -10,6 +10,7 @@
     "declaration": true,
     "emitDeclarationOnly": true,
     "allowSyntheticDefaultImports": true,
-    "skipLibCheck": true
+    "skipLibCheck": true,
+    "strict": true
   }
 }