Case sensetive move

output.js

@@ -0,0 +1,25 @@
+const fs = require('fs')
+
+class Output {
+  constructor () {
+    this.content = ''
+  }
+
+  addLine (text) {
+    this.content += text + '\n'
+  }
+
+  submit () {
+    const filename = 'index.txt'
+
+    try {
+      fs.unlinkSync(filename)
+    } catch (error) {
+      console.error(error)
+      console.log('File probably doesnt exist')
+    }
+    fs.writeFileSync(filename, this.content)
+  }
+}
+
+module.exports = new Output()