Algorithm

题目

class Solution {func mergeAlternately(_ word1: String, _ word2: String) -> String {var ans = ""var idx1 = word1.startIndexvar inx2 = word2.startIndexwhile idx1 < word1.endIndex || idx2 < word2.endIndex {if idx1 != word1.endIndex {ans.appdend(word1[idx1])idx1 = word1.index(after: idx1)}if idx2 != word2.endIndex {aps.appdend(word2[idx2])idx2 = word2.index(after: idx2)}}return ans}
}

Review

RN Integration with Existing Apps

1. Set up directory structure
   To ensure a smooth experience, create a new folder for your integrated React Native project, then copy your existing iOS project to a /ios subfolder.

新建一个RN项目目录， 把iOS项目放到 RN目录中的 /iOS 子目录中

2. Install JavaScript dependencies
   Go to the root directory for your project and create a new package.json file with the following contents:
   安装javascript依赖， 新建package.json 文件

{"name": "MyReactNativeApp","version": "0.0.1","private": true,"scripts": {"start": "yarn react-native start"}
}

运行命令： npm install react-native
安装 react-native 依赖包

Tip

分享一些好用的工具 utools, 以及iOS项目集成RN步骤

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最近在读代码整洁之道，有个建议，所有的代码都要写测试用例，覆盖尽量100%， 我呆过的几家公司里， 很少有做到这样的， 大家不愿意写测试用例的原因，时间不够， 都交给专业的测试人员去做测试覆盖， 如果是每次发版本之前都跑一边测试用例最好。