Demo地址 | Sorth Tong

https://github.com/68wangxianming/front-end-algorithm

ES6、Jest、NPM、Git

https://jestjs.io/docs/zh-Hans/getting-started

npm install --save-dev jest
npm install babel-jest babel-core@^7.0.0-bridge.0 @babel/core regenerator-runtime babel-preset-env

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编辑package.json

{
    "scripts": {
        "test": "jest"
    }
}

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编辑.babelrc

{
    "presets": ["env", "react"]
}

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function sum(a, b) {
    return a + b;
}
export default sum;

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import sum from './index'

test('adds 1 + 2 to equal 3', () => {
    expect(sum(1, 2)).toBe(3);
});

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npm test