chore: import upstream snapshot with attribution

curriculum/challenges/english/blocks/basic-javascript/bd7123c9c441eddfaeb5bdef.md

@@ -0,0 +1,53 @@
+---
+id: bd7123c9c441eddfaeb5bdef
+title: Understanding Boolean Values
+challengeType: 1
+forumTopicId: 301176
+dashedName: understanding-boolean-values
+---
+
+# --description--
+
+Another data type is the <dfn>Boolean</dfn>. Booleans may only be one of two values: `true` or `false`. They are basically little on-off switches, where `true` is on and `false` is off. These two states are mutually exclusive.
+
+**Note:** Boolean values are never written with quotes. The strings `"true"` and `"false"` are not Boolean and have no special meaning in JavaScript.
+
+# --instructions--
+
+Modify the `welcomeToBooleans` function so that it returns `true` instead of `false`.
+
+# --hints--
+
+The `welcomeToBooleans()` function should return a Boolean (`true` or `false`) value.
+
+```js
+assert(typeof welcomeToBooleans() === 'boolean');
+```
+
+`welcomeToBooleans()` should return `true`.
+
+```js
+assert(welcomeToBooleans() === true);
+```
+
+# --seed--
+
+## --seed-contents--
+
+```js
+function welcomeToBooleans() {
+  // Only change code below this line
+
+  return false; // Change this line
+
+  // Only change code above this line
+}
+```
+
+# --solutions--
+
+```js
+function welcomeToBooleans() {
+  return true; // Change this line
+}
+```