Fix typo in lesson 1

fixes #4

.github/workflows/deploy.yml

@@ -0,0 +1,27 @@
+name: deploy
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  test:
+    runs-on: ubuntu-22.04
+    environment: garage
+    steps:
+      - uses: actions/checkout@v4
+      - name: Copy website
+        run: |
+          mkdir dist
+          files=$(git ls-files | grep -E '\.(html|css|js)$')
+          cp --parents $files ./dist
+      - name: Deploy website
+        run: |
+          aws configure set default.s3.addressing_style path
+          aws s3 sync ./dist s3://womangling.noratrieb.dev
+        env:
+          AWS_ACCESS_KEY_ID: "${{ secrets.AWS_KEY_ID }}"
+          AWS_SECRET_ACCESS_KEY: "${{ secrets.AWS_SECRET_KEY }}"
+          AWS_REGION: garage
+          AWS_ENDPOINT_URL: https://garage.noratrieb.dev

flashcard.js

@@ -1,19 +1,18 @@
-const randomItem = (not) => {
-  let item;
-
-  do {
-    const idx = Math.floor(Math.random() * window.ITEMS.length);
-    item = window.ITEMS[idx];
-  } while (not && item === not);
-
-  return item;
-};
-
 const infoText = document.querySelector("#info-text");
 
 function next() {
   infoText.textContent = "";
-  const item = randomItem();
+
+  const candiates = [...window.ITEMS];
+
+  const nextRandomItem = () => {
+    const idx = Math.floor(Math.random() * candiates.length);
+    const result = candiates[idx];
+    candiates.splice(idx, 1);
+    return result;
+  };
+
+  const item = nextRandomItem();
 
   const mangle = Math.random() > 0.5;
 
@@ -24,10 +23,10 @@ function next() {
   children[1].textContent = mangle ? item.means : item.mangle;
 
   const options = [
-    randomItem(item),
-    randomItem(item),
-    randomItem(item),
-    randomItem(item),
+    nextRandomItem(item),
+    nextRandomItem(item),
+    nextRandomItem(item),
+    nextRandomItem(item),
   ];
   const correctIdx = Math.floor(Math.random() * options.length);
   options[correctIdx] = item;

lesson-1.html

@@ -31,7 +31,7 @@
             Every C++ mangled symbol is prefixed with the string
             <code>_Z</code>. This signifies that this is a mangled C++ symbol.
             <code>_Z</code> starts with an underscore followed by an uppercase
-            letter. All symbols of that structures are reserved by the C
+            letter. All symbols of that structure are reserved by the C
             standard and cannot be used by programs. This ensures that there are
             no name collisions with normal C functions and mangled C++
             functions.