NodeJS Week 2 homework is done.

humblecoder00 · web-flow · commit b37cba87c6b3 · 2019-01-22T21:24:11.000+01:00
diff --git a/week2/homework/src/utility/utilityAdd.js b/week2/homework/src/utility/utilityAdd.js
@@ -0,0 +1,37 @@
+"use strict";
+
+const fs = require("fs");
+
+const utilityAdd = title => {
+  let todos = [];
+  let todo = {
+    title
+  };
+
+  //Try to read the json file:
+
+  try {
+    let todosString = fs.readFileSync("./todolist.json");
+    todos = JSON.parse(todosString);
+  } catch (err) {}
+
+  //Check if there is any data inside the json file:
+  if (todos.length === 0) {
+    // If there is no data, just push the user input:
+    todos.push(todo);
+    fs.writeFileSync("./todolist.json", JSON.stringify(todos));
+  } else {
+    // If there is data inside the json file, read it first.
+    let writtenJson = fs.readFileSync("./todolist.json");
+    // Then parse it & store it inside the todos array.
+    todos = JSON.parse(writtenJson);
+    // Push the current input to that array.
+    todos.push(todo);
+    // Write back the updated data in json format to the file:
+    fs.writeFileSync("./todolist.json", JSON.stringify(todos));
+  }
+};
+
+module.exports = {
+  utilityAdd
+};
