src/internal/syscall/unix/nonblocking_js.go

// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build js && wasm
// +build js,wasm

package unix

func IsNonblock(fd int) (nonblocking bool, err error) {
	return false, nil
}