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  <title>Lodash isFunction — non-callables</title>
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  <h1>_.isFunction — objects and primitives</h1>
  <pre id="out"></pre>
  <script src="https://cdn.jsdelivr.net/npm/lodash@4.17.21/lodash.min.js"></script>
  <script>
    (function () {
      document.getElementById("out").textContent =
        "plainObj: " + _.isFunction({ run: function () {} }) + "\n" +
        "regexp: " + _.isFunction(/match-me/) + "\n" +
        "numberPrim: " + _.isFunction(0);
    })();
  </script>
</body>
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Lodash _.isFunction — non-callables (Try It)