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  <title>Lodash .commit() vs .value()</title>

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  <h1>Wrapper .commit() vs .value()</h1>

  <pre id="out"></pre>

  <script src="https://cdn.jsdelivr.net/npm/lodash@4.17.21/lodash.min.js"></script>

  <script>

    (function () {

      var arr1 = [1, 2];
      var arr2 = [1, 2];

      var afterCommit = _(arr1).push(3).commit();
      var afterValue = _(arr2).push(4).value();

      var lines = [
        "commit returns wrapper: " + (typeof afterCommit.value === "function"),
        "value returns array:   " + Array.isArray(afterValue),
        "arr1 after commit:     " + JSON.stringify(arr1),
        "arr2 after value:      " + JSON.stringify(arr2)
      ];

      document.getElementById("out").textContent = lines.join("\n");

    })();

  </script>

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Lodash wrapper .commit() vs .value() (Try It)