HTML Code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>merge vs assign</title>
</head>
<body>
  <h1>merge vs assign</h1>
  <pre id="out"></pre>
  <script src="https://cdn.jsdelivr.net/npm/lodash@4.17.21/lodash.min.js"></script>
  <script>
    var nested = { a: { x: 1 } };
    document.getElementById("out").textContent =
      JSON.stringify(_.assign({}, nested, { a: { y: 2 } })) + "
" +
      JSON.stringify(_.merge({}, nested, { a: { y: 2 } }));
  </script>
</body>
</html>

Lines: 0 | Characters: 0

Live Preview Auto-refresh on Run

Lodash _.merge vs _.assign (Try It)