title: TSLint tells my identifier is never reassigned, but it's changeable somehow
body: <p>What should I do? The method is work either I use <code>let</code> or <code>const</code>.</p>
  
  <p>As you can see at the image below, the variable is binded with my input element and used multiple times due to iteration.</p>
  
  <p>(Does two-way binding is described as <code>const</code>/<code>let</code> when its value change / you can change its value?).</p>
  
  <p><a href="https://i.stack.imgur.com/mt9MX.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/mt9MX.png" alt="This is the full method"></a></p>
  
  <p>And here is the linter say:</p>
  
  <p><code>Identifier 'electronic' is never reassigned; use 'const' instead of 'let'. (prefer-const)</code></p>