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  <title>Lodash sortedIndexBy — ties</title>
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<body>
  <h1>Lodash _.sortedIndexBy — duplicate projections</h1>
  <pre id="out"></pre>
  <script src="https://cdn.jsdelivr.net/npm/lodash@4.17.21/lodash.min.js"></script>
  <script>
    (function () {
      var rows = [
        { id: "a", score: 10 },
        { id: "b", score: 20 },
        { id: "c", score: 20 },
        { id: "d", score: 30 }
      ];
      document.getElementById("out").textContent = String(
        _.sortedIndexBy(rows, { id: "x", score: 20 }, "score")
      );
    })();
  </script>
</body>
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Lodash _.sortedIndexBy — duplicate scores (Try It)