refactor

node_modules/is-stream/index.js

@@ -1,29 +0,0 @@
-export function isStream(stream) {
-	return stream !== null
-		&& typeof stream === 'object'
-		&& typeof stream.pipe === 'function';
-}
-
-export function isWritableStream(stream) {
-	return isStream(stream)
-		&& stream.writable !== false
-		&& typeof stream._write === 'function'
-		&& typeof stream._writableState === 'object';
-}
-
-export function isReadableStream(stream) {
-	return isStream(stream)
-		&& stream.readable !== false
-		&& typeof stream._read === 'function'
-		&& typeof stream._readableState === 'object';
-}
-
-export function isDuplexStream(stream) {
-	return isWritableStream(stream)
-		&& isReadableStream(stream);
-}
-
-export function isTransformStream(stream) {
-	return isDuplexStream(stream)
-		&& typeof stream._transform === 'function';
-}