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  <title>Lodash toLength — new Array</title>
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  <h1>_.toLength — safe new Array(n)</h1>
  <pre id="out"></pre>
  <script src="https://cdn.jsdelivr.net/npm/lodash@4.17.21/lodash.min.js"></script>
  <script>
    (function () {
      function makeBuffer(req) { return new Array(_.toLength(req)); }
      var lines = [];
      lines.push("'42':    len=" + makeBuffer("42").length);
      lines.push("-5:      len=" + makeBuffer(-5).length);
      lines.push("'abc':   len=" + makeBuffer("abc").length);
      lines.push("9e99:    len=" + makeBuffer(9e99).length);
      lines.push("null:    len=" + makeBuffer(null).length);
      try {
        new Array(4294967296);
      } catch (err) {
        lines.push("raw new Array(2^32): " + err.message);
      }
      document.getElementById("out").textContent = lines.join("\n");
    })();
  </script>
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Lodash _.toLength — safe new Array(n) (Try It)