javascript string problem solving

Author: lgope

Interview-Questions/camelLetters.js

@@ -0,0 +1,43 @@
+/*
+    Write a function that accepts a String as an argument
+
+    The function should capitalize ONLY every other letter in the String
+
+    The function should then return the converted String.
+
+*/
+
+// Edge cases
+/**
+ * "" => ""
+ * letter === character
+ *
+ * starting caps at letter index 0
+ *
+ * "hello" => "HeLlO"
+ * "yo eli" => "Yo eLi"
+ * "hello????" => "HeLlO????"
+ * "HELLO" => "HeLlO"
+ */
+
+const camelLetters = (str) => {
+  let camelStr = "";
+  for (let i = 0; i < str.length; i++) {
+    // const element = array[i];
+    // str = str[i].toUpperCase();
+    // str = str.replaceAt(i, str[i].toUpperCase());
+    // camelStr[i] = camelStr[i].toUpperCase();
+    // console.log(str[i])
+
+    camelStr += i % 2 === 0 ? str[i].toUpperCase() : str[i];
+  }
+  // console.log([...str].map((st, index) => index % 2 ? st.toUpperCase() : st).join(""))
+
+  //   console.log(camelStr);
+//   return camelStr.join("");
+  return camelStr;
+};
+
+console.log(camelLetters("hello"));
+// camelLetters("yo eli")
+// camelLetters("hello????")

Interview-Questions/closeDiv.js

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+/*
+    Write a function that accepts a String as an argument.
+
+    The String is supposed to be HTML, but all the div elements are missing their closing tags (they have the < and >)
+
+    The function's job is to find and close all the divs in the provided HTML String
+
+    The function should return the entire corrected String.
+*/
+
+// Edge cases
+/**
+ * "<div><p>Here is a tag</p><div>" => "<div><p>Here is a tag</p></div>"
+ *
+ * "<div><div><p>Hello World</p><div><div>" => "<div></div><p>Here is a tag</p><div></div>"
+ *
+ * Second div should be closed div
+ */
+
+const closeSecondDivs = (str) => {
+  let divCounter = 0;
+  let unknownFour = "";
+  let fixedHTML = "";
+
+  for (let i = 0; i < str.length; i++) {
+    if (str[i] === "<") {
+      for (let j = 1; j < 5; j++) {
+        unknownFour += str[i + j];
+      }
+    }
+
+    if (unknownFour === "div>") {
+      divCounter++;
+      if (divCounter % 2 === 0) {
+        fixedHTML += str[i] + "/";
+        unknownFour = "";
+        continue;
+      }
+    }
+
+    fixedHTML += str[i];
+    unknownFour = "";
+  }
+
+  return fixedHTML;
+};
+
+console.log(closeSecondDivs("<div><p>Here is a tag</p><div>"));
+console.log(closeSecondDivs("<div><div><p>Hello World</p><div><div>"));