test

README.md

@@ -9,11 +9,10 @@
 <p align="center">
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   <a href="https://www.npmjs.com/package/tinyfunk"><img src="https://img.shields.io/npm/dm/tinyfunk.svg" alt="npm downloads" style="max-width:100%;"></a>
-  <a href="#"><img src="https://img.shields.io/badge/gzip--size-1.52%20kB-blue.svg" alt="gzip-size" style="max-width:100%;"></a>
+  <a href="#"><img src="https://img.shields.io/badge/gzip--size-1.53%20kB-blue.svg" alt="gzip-size" style="max-width:100%;"></a>
   <br />
   <a href="https://travis-ci.org/flintinatux/tinyfunk"><img src="https://travis-ci.org/flintinatux/tinyfunk.svg?branch=master" alt="Build Status" style="max-width:100%;"></a>
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-  <a href="https://nodesecurity.io/orgs/flintinatux/projects/d5f96f7c-898a-4244-a9d2-4f3c429d5f3d"><img src="https://nodesecurity.io/orgs/flintinatux/projects/d5f96f7c-898a-4244-a9d2-4f3c429d5f3d/badge" alt="NSP Status" style="max-width:100%;"></a>
 </p>
 
 ## Documentation
@@ -137,6 +136,7 @@ If you've lived with FP long enough, you are likely familiar with most of the fu
 | `tail` | `[a] -> [a]` |
 | `take` | `Number -> [a] -> [a]` |
 | `tap` | `(a -> b) -> a -> a` |
+| `test` | `RegExp -> String -> Boolean` |
 | `then` | `(a -> Promise b) -> a -> Promise b` |
 | `thrush` | `a -> (a -> b) -> b` |
 | `unapply` | `([a] -> b) -> a... -> b` |

src.js

@@ -308,6 +308,11 @@ const tap = curry((f, x) =>
   (f(x), x)
 )
 
+// test :: RegExp -> String -> Boolean
+const test = curry((regexp, string) =>
+  regexp.test(string)
+)
+
 // then :: (a -> Promise b) -> a -> Promise b
 const then = curry((f, x) =>
   Promise.resolve(x).then(f)
@@ -474,6 +479,7 @@ _assign(exports, {
   tail,
   take,
   tap,
+  test,
   then,
   thrush,
   unapply,

test/test.js

@@ -0,0 +1,16 @@
+const { expect } = require('chai')
+
+const { test } = require('..')
+
+describe('test', () => {
+  const pattern = /good/
+
+  it('tests a string against a RegExp', () => {
+    expect(test(pattern, 'good news')).to.be.true
+    expect(test(pattern, 'bad news')).to.be.false
+  })
+
+  it('is curried', () =>
+    expect(test(pattern)('good news')).to.be.true
+  )
+})