feat(core): initial code commit

.editorconfig

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+# EditorConfig: http://EditorConfig.org
+
+# top-most EditorConfig file
+root = true
+
+# Unix-style newlines with a newline ending every file
+[*]
+charset = utf-8
+end_of_line = lf
+trim_trailing_whitespace = true
+insert_final_newline = true
+indent_style = space
+indent_size = 4
+
+# 2 space indentation
+[*.yaml, *.yml]
+indent_style = space
+indent_size = 2

.github/workflows/tests.yml

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+name: Tests
+on: ['push', 'pull_request']
+jobs:
+  test:
+    name: Node.js ${{ matrix.node-version }}
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        node-version: [^12, ^14, ^16, ^17]
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v2
+        with:
+          node-version: ${{ matrix.node-version }}
+      - run: npm install
+      - run: npm test

.gitignore

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+# Global
+node_modules/
+
+# OS Generated
+.DS_Store*
+ehthumbs.db
+Icon?
+Thumbs.db
+*.swp
+
+# phpstorm
+.idea/*

CHANGELOG.md

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+<a name="1.0.0"></a>
+# [1.0.0](https://github.com/faker-javascript/age) (2022-01-08)
+* Initial release

LICENSE

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+MIT License
+
+Copyright (c) Sergey Romanenko
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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-# age
+<h1 align="center">Age</h1>
+<p align="center">
 Age package provides functionality to generate a fake age value.
+</p>
+
+<p align="center">
+<a href="https://github.com/faker-javascript/age/releases"><img alt="Version" src="https://img.shields.io/github/release/faker-javascript/age.svg?label=version&color=green"></a> <a href="https://github.com/faker-javascript/age"><img src="https://img.shields.io/badge/license-MIT-blue.svg?color=green" alt="License"></a> <img src="https://github.com/faker-javascript/age/actions/workflows/tests.yml/badge.svg">
+
+## Install
+
+```
+$ npm install --save @fakerjs/age
+```
+
+## Usage
+
+```js
+import fakeAge from '@fakerjs/age';
+
+fakeAge();
+//=> 42
+
+fakeAge({type: 'child'});
+//=> 10
+// Allowed types are: child, teen, adult, senior
+```
+
+## Tests
+
+Run tests
+
+```
+npm run test
+```
+
+## License
+[The MIT License (MIT)](https://github.com/faker-javascript/age/blob/master/LICENSE.txt)
+Copyright (c) [Sergey Romanenko](https://github.com/Awilum)

index.js

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+export default function fakeAge(options) {
+    options = options || {};
+    let min = 0;
+    let max = 100;
+    switch (options.type) {
+        case 'child':
+            min = 0; 
+            max = 12;
+            break;
+        case 'teen':
+            min = 13; 
+            max = 19;
+            break;
+        case 'adult':
+            min = 18; 
+            max = 65;
+            break;
+        case 'senior':
+            min = 65; 
+            max = 100;
+            break;
+        case 'all':
+            min = 0; 
+            max = 100;
+            break;
+        default:
+            min = 0; 
+            max = 100;
+            break;
+    }
+    min = Math.ceil(min);
+    max = Math.floor(max);
+    return Math.floor(Math.random() * (max - min + 1)) + min;
+};

package.json

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+{
+  "name": "@fakerjs/age",
+  "version": "1.0.0",
+  "description": "Age package provides functionality to generate a fake age value.",
+  "license": "MIT",
+  "repository": "faker-javascript/age",
+  "author": {
+    "name": "Sergey Romanenko",
+    "email": "awilum@msn.com",
+    "url": "https://github.com/Awilum"
+  },
+  "type": "module",
+  "exports": "./index.js",
+  "engines": {
+    "node": ">=12"
+  },
+  "scripts": {
+    "test": "ava"
+  },
+  "devDependencies": {
+    "ava": "^3.15.0"
+  },
+  "files": [
+    "index.js"
+  ],
+  "keywords": [
+    "fakerjs",
+    "fake",
+    "random",
+    "age"
+  ]
+}

test.js

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+import fakeAge from './index.js';
+import test from 'ava';
+
+test('fakeAge return type to be number', t => {
+	t.is(typeof fakeAge(), 'number');
+});
+
+test('fakeAge with type child less than 13 and more than -1', t => {
+	t.true(fakeAge({type: 'child'}) < 13);
+	t.true(fakeAge({type: 'child'}) > -1);
+});
+
+test('fakeAge with type teen less than 20 and more than 12', t => {
+	t.true(fakeAge({type: 'teen'}) < 20);
+	t.true(fakeAge({type: 'teen'}) > 12);
+});
+
+test('fakeAge with type adult less than 69 and more than 17', t => {
+	t.true(fakeAge({type: 'adult'}) < 69);
+	t.true(fakeAge({type: 'adult'}) > 17);
+});
+
+test('fakeAge with type senior less than 101 and more than 64', t => {
+	t.true(fakeAge({type: 'senior'}) < 101);
+	t.true(fakeAge({type: 'senior'}) > 64);
+});
+
+test('fakeAge with type all less than 101 and more than -1', t => {
+	t.true(fakeAge({type: 'all'}) < 101);
+	t.true(fakeAge({type: 'all'}) > -1);
+});