chore: import upstream snapshot with attribution

curriculum/challenges/english/blocks/basic-algorithm-scripting/ab6137d4e35944e21037b769.md

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+---
+id: ab6137d4e35944e21037b769
+title: Title Case a Sentence
+challengeType: 1
+forumTopicId: 16088
+dashedName: title-case-a-sentence
+---
+
+# --description--
+
+Return the provided string with the first letter of each word capitalized. Make sure the rest of the word is in lower case.
+
+For the purpose of this exercise, you should also capitalize connecting words like `the` and `of`.
+
+# --hints--
+
+`titleCase("I'm a little tea pot")` should return a string.
+
+```js
+assert.isString(titleCase("I'm a little tea pot"));
+```
+
+`titleCase("I'm a little tea pot")` should return the string `I'm A Little Tea Pot`.
+
+```js
+assert.strictEqual(titleCase("I'm a little tea pot"), "I'm A Little Tea Pot");
+```
+
+`titleCase("sHoRt AnD sToUt")` should return the string `Short And Stout`.
+
+```js
+assert.strictEqual(titleCase('sHoRt AnD sToUt'), 'Short And Stout');
+```
+
+`titleCase("HERE IS MY HANDLE HERE IS MY SPOUT")` should return the string `Here Is My Handle Here Is My Spout`.
+
+```js
+assert.strictEqual(
+  titleCase('HERE IS MY HANDLE HERE IS MY SPOUT'),
+  'Here Is My Handle Here Is My Spout'
+);
+```
+
+# --seed--
+
+## --seed-contents--
+
+```js
+function titleCase(str) {
+  return str;
+}
+
+titleCase("I'm a little tea pot");
+```
+
+# --solutions--
+
+```js
+function titleCase(str) {
+  return str
+    .split(' ')
+    .map(word => word.charAt(0).toUpperCase() + word.substring(1).toLowerCase())
+    .join(' ');
+}
+
+titleCase("I'm a little tea pot");
+```