allow single argument

Author: ivan7237d

.github/CONTRIBUTING.md

@@ -26,10 +26,4 @@ pnpm add pipe-function
 import { pipe } from "pipe-function";
 ```
 
-Takes between 2 and 20 arguments. `pipe(x, a, b)` is equivalent to `b(a(x))`, in other words, this function pipes a value through a number of functions in the order that they appear. [This article](https://dev.to/ivan7237d/i-ve-used-the-pipe-function-2-560-times-and-i-can-tell-you-it-s-good-4aal) talks about why this function is useful.
-
-When you have a single argument, like `const y = pipe(x)`, `pipe` is redundant, so you will get a type error, but the code will run and return `x`. Despite the type error, the type of `y` will be inferred correctly as type of `x`.
-
----
-
-[Contributing guidelines](https://github.com/ivan7237d/pipe-function/blob/master/.github/CONTRIBUTING.md)
+Takes between 1 and 20 arguments. `pipe(x, a, b)` is equivalent to `b(a(x))`, in other words, this function pipes a value through a number of functions in the order that they appear. [This article](https://dev.to/ivan7237d/i-ve-used-the-pipe-function-2-560-times-and-i-can-tell-you-it-s-good-4aal) talks about why this function is useful.

.github/README.md

@@ -1,5 +1,9 @@
 # Changelog
 
+## [1.0.2]
+
+Type signature changed to allow a single argument.
+
 ## [1.0.1]
 
 Type signature changed in such a way that when you write `const y = pipe(x)`, you still get a type error, but the type of `y` is inferred as type of `x` instead of `unknown`.

CHANGELOG.md

@@ -1,6 +1,6 @@
 {
   "name": "pipe-function",
-  "version": "1.0.1",
+  "version": "1.0.2",
   "description": "A function to pipe a value through a number of transforms",
   "repository": "https://github.com/ivan7237d/pipe-function.git",
   "license": "MIT",

package.json

@@ -7,9 +7,7 @@ const addSuffix =
 
 test("", () => {
   // $ExpectType "base"
-  const result =
-    // @ts-expect-error
-    pipe("base" as const);
+  const result = pipe("base" as const);
   expect(result).toMatchInlineSnapshot(`"base"`);
 
   expect(

src/index.test.ts

@@ -1,5 +1,6 @@
 type Pipe = {
-  <T, A = T>(source: T, a: (value: T) => A): A;
+  <T>(source: T): T;
+  <T, A>(source: T, a: (value: T) => A): A;
   <T, A, B>(source: T, a: (value: T) => A, b: (value: A) => B): B;
   <T, A, B, C>(
     source: T,