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How to load image from dir nodejs

var fs = require('fs');
function(req,res){
  fs.readFile('image.jpg', function(err, data) {
    if (err) throw err; // Fail if the file can't be read.
      res.writeHead(200, {'Content-Type': 'image/jpeg'});
      res.end(data); // Send the file data to the browser.
  });
}

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