Fix add book functionality

Author: Samual-Hu

debugging/book-library/script.js

@@ -20,25 +20,26 @@ function populateStorage() {
   }
 }
 
-const title = document.getElementById("title");
-const author = document.getElementById("author");
-const pages = document.getElementById("pages");
-const check = document.getElementById("check");
-
 //check the right input from forms and if its ok -> add the new book (object in array)
 //via Book function and start render function
 function submit() {
+  const title = document.getElementById("title");
+  const author = document.getElementById("author");
+  const pages = document.getElementById("pages");
+  const check = document.getElementById("check");
   if (
     title.value == null ||
     title.value == "" ||
+    author.value == null ||
+    author.value == "" ||
     pages.value == null ||
     pages.value == ""
   ) {
     alert("Please fill all fields!");
     return false;
   } else {
     let book = new Book(title.value, author.value, pages.value, check.checked);
-    Mylibrary.push(book);
+    myLibrary.push(book);
     render();
   }
 }
@@ -76,7 +77,7 @@ function render() {
     changeBut.className = "btn btn-success";
     wasReadCell.appendChild(changeBut);
     let readStatus = "";
-    if (myLibrary[i].check == false) {
+    if (myLibrary[i].check == true) {
       readStatus = "Yes";
     } else {
       readStatus = "No";