title: String has hidden characters, Can't able to verify ,
body: <p>I asked a question some 2 hours before </p>
  
  <p><em>[Not required to see the question, Just a reference ]</em>
  <a href="https://stackoverflow.com/questions/38099262/storing-images-using-node-js-gives-error">Storing images using node.js gives error</a></p>
  
  <p>The solution given was was literally the same of my code, I tried to find the difference between my code and his code to see what's the modification he did to make it work, But there is nothing modified. </p>
  
  <p>So i thought of trying it online IDE and i tried c9.io online IDE to check it. But suddenly something showed up little bit strange in the online c9.io IDE which my local sublime editor did't show it.</p>
  
  <p>The below image is text <strong>which i saw in sublime</strong>, Which does't have any 
  difference.</p>
  
  <h2><a href="https://i.stack.imgur.com/nLuwk.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/nLuwk.png" alt="enter image description here"></a></h2>
  
  <p>-</p>
  
  <p>The below is the text i  found in c9.io . As you can see clearly there is <code>two dots</code> showed up newly in c9.io javascript editor.</p>
  
  <h2><a href="https://i.stack.imgur.com/G5sgv.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/G5sgv.png" alt="enter image description here"></a></h2>
  
  <blockquote>
    <p>I could not able to see the difference that in normal text editor, Then in online
    different checker also showed the error.</p>
  </blockquote>
  
  <p><a href="https://i.stack.imgur.com/yeDrI.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/yeDrI.png" alt="enter image description here"></a></p>
  
  <p><strong>Ths below is the text which has the hidden difference between two strings</strong></p>
  
  <pre><code>AybükeArslan‌​_(3).JPG
  
  AybükeArslan_(3).JPG
  </code></pre>
  
  <blockquote>
    <p>Just copy paste the above text  in <a href="https://www.diffchecker.com/" rel="nofollow noreferrer">https://www.diffchecker.com/</a> after then you could see the difference between the above
    two strings</p>
  </blockquote>
  
  <p>Can anyone tell what's the reason for this and how to remove the unwanted characters from the string through a javascript function. It's been giving one hell of a problem for 5 hours in my server.</p>