Function isView

packages/socket.io/client-dist/socket.io.js:3056–3058

(obj)

  var withNativeArrayBuffer = typeof ArrayBuffer === "function";
  var isView = function isView(obj) {
    return typeof ArrayBuffer.isView === "function" ? ArrayBuffer.isView(obj) : obj.buffer instanceof ArrayBuffer;
  };
  var toString = Object.prototype.toString;
  var withNativeBlob = typeof Blob === "function" || typeof Blob !== "undefined" && toString.call(Blob) === "[object BlobConstructor]";
  var withNativeFile = typeof File === "function" || typeof File !== "undefined" && toString.call(File) === "[object FileConstructor]";