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  <title>Lodash _.updateWith - grid cell</title>
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  <h1>_.updateWith - grid cell</h1>
  <pre id="out"></pre>
  <script src="https://cdn.jsdelivr.net/npm/lodash@4.17.21/lodash.min.js"></script>
  <script>
    (function () {
      var object = {};
      var customizer = function (nsValue, key) {
        if (nsValue !== undefined) return nsValue;
        return String(+key) === key ? [] : {};
      };
      _.updateWith(object, "rows[0].cells[1]", function () {
        return "Hello";
      }, customizer);
      var lines = [
        "rows[0].cells[1]: " + object.rows[0].cells[1],
        "",
        JSON.stringify(object, null, 2)
      ];
      document.getElementById("out").textContent = lines.join("\n");
    })();
  </script>
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Lodash _.updateWith - grid cell (Try It)