README.md

@@ -19,8 +19,5 @@ result.bind(() => Err(new Error(-Infinity)))
     .bind(Ok)
 
 result.isErr() // true
-
-// crimes!
-None == None() // true
 ```
 

src/algebra/option.js

@@ -81,12 +81,13 @@ function isSome() {
  * @returns {this is None}
  */
 function isNone() {
-  return this === None
+  return this === none
 }
 
 /**
  * @template T
  * @param {?T} value
+ * @variation 2
  * @returns {Some<T>}
  */
 export const Some = value => ({
@@ -100,13 +101,21 @@ export const Some = value => ({
   fold
 })
 
-export const None = () => None
-None.isSome = isSome
-None.isNone = isNone
-None.chain = constant
-None.map = constant
-None.alt = alt
-None.fold = fold
+/**
+ * @returns {None}
+ */
+export const None = () => none
+
+/** @type {None} */
+export const none = ({
+  isSome,
+  isNone,
+  chain: constant,
+  map: constant,
+  alt,
+  fold
+})
+
 
 /**
  * @template T

src/index.js

@@ -1,2 +1,5 @@
-export * from './algebra/index.js'
+import { Result } from './algebra/result.js'
+
+const a = Result.of(2).chain(x => Result.zero())
+console.log(a)