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<head>
  <meta charset="utf-8">
  <title>runInContext — vs _</title>
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<body>
  <h1>Copy !== global _</h1>
  <pre id="out"></pre>
  <script src="https://cdn.jsdelivr.net/npm/lodash@4.17.21/lodash.min.js"></script>
  <script>
    var lodash = _.runInContext();
    var lines = [
      typeof _.map,
      String(lodash === _)
    ];
    document.getElementById("out").textContent = lines.join("\n");
  </script>
</body>
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Lodash _.runInContext — vs identity (Try It)