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  <title>Lodash flatMap — scopes</title>
</head>
<body>
  <h1>Lodash _.flatMap — user scopes</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 = JSON.stringify(
        _.flatMap(
          [
            { name: "Ada", scopes: ["read", "write"] },
            { name: "Lin", scopes: ["read"] }
          ],
          function (user) {
            return user.scopes;
          }
        )
      );
    })();
  </script>
</body>
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Lodash _.flatMap — scopes (Try It)