[ADD] any

any/index.js

@@ -0,0 +1,8 @@
+module.exports = function any(iterable, predicator) {
+  for (const element of iterable) {
+    if (predicator(element)) {
+      return true;
+    }
+  }
+  return false;
+}

index.js

@@ -1,5 +1,6 @@
 const all = require('./all');
 const andThen = require('./andThen');
+const any = require('./any');
 const compose = require('./compose');
 const filter = require('./filter');
 const foldLeft = require('./foldLeft');
@@ -12,6 +13,7 @@ const zip = require('./zip');
 module.exports = {
   all,
   andThen,
+  any,
   compose,
   filter,
   foldLeft,

test/any.test.js

@@ -0,0 +1,24 @@
+const assert = require('assert');
+const $ = require('../');
+
+describe('any test', () => {
+  const array = [2, 4, 5, 8, 10];
+  it('work with array', () => {
+    const result = $.any(array, (x) => x % 2 == 1);
+    assert.equal(result, true);
+  });
+  it('work with Set', () => {
+    const set = new Set(array);
+    set.delete(5);
+    const result = $.any(set, (x) => x % 2 == 1);
+    assert.equal(result, false);
+  });
+  it('work with Map', () => {
+    const map = new Map();
+    for (let i = 3; i <= 9; i++) {
+      map.set(i, i * 2);
+    }
+    const result = $.any(map, (x) => x[0] % 2 == 1);
+    assert.deepEqual(result, true);
+  });
+});