Method #checkReadable

lib/internal/vfs/file_handle.js:414–419

* Throws EBADF if the handle was not opened for reading.

()

   * Throws EBADF if the handle was not opened for reading.
   */
  #checkReadable() {
    const f = this.flags;
    if (f === 'w' || f === 'a' || f === 'wx' || f === 'ax') {
      throw createEBADF('read');
    }
  }

  /**
   * Returns true if this handle was opened in append mode.