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[Front-End interview questions · Front-End Developer Handbook 2018](https://frontendmasters.com/books/front-end-handbook/2018/practice/interview-q.html)
[Twipped/InterviewThis: An open source list …
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### 好处
单元测试的好处就不用多说了，对于敏捷开发的迭代需求或者业务逻辑的重构，有了单元测试之后非常方便的担保业务逻辑平滑过渡，而且单元测试的case的存在，可以有效的说明逻辑，比代码注释更为清晰。在MVVM框架流行的今天，数据驱动DOM使得单元测试更加重要而且可行性更高。
### 痛点
前端单元测试推动是一直有痛点的，包括一些大厂对前端单元测试这个态度不是很统一。原因主要概括为两点：
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## Version **2.3.0** of [next](https://github.com/zeit/next.js) just got published.
Branch
Build failing 🚨
Dependency
next
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**Is your feature request related to a problem? Please describe.**
The current feedback paradigm requires you to maintain state externally of the Feedback and pass in a valueFunc at construction to n…
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If we can get this to type check properly, we would have perfect support for boilerplate-free mixins:
``` typescript
declare function Blah(target: T): T & {foo: number}
@Blah
class Foo {
bar() {…
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Current proposals:
1. Drop-in GenServer replacement, no additional handlers. Every handle_* callback that changes the state is hooked to push the state to clients via Phoenix Channel. This is the cur…
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### **\[SP-5 PRD1\] \- Core User Interface Development**
#### Ticket 1: SP−5SP-5SP−5 PRD1 \- Core User Interface Development
#### **Summary:**
Design and implement the core user interface co…
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In the product selector dropdown, there is the "About Mattermost" item.
If the instance name is anything different than Mattermost, it may grow beyond the menu space, cutting the string.
The string …
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1. class names based only +1
2. ui lib should ship without a theme +1
3. ui components should be requirable separately (we often just need the f..g button))))) +1
4. react-themeable +1
5. We need to d…
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Hi,
Recently(past few days) my builds have started failing. I can't find any failures in the logs, or at least anything to me that looks like an error. These are the last few line of the log that I …