Zhentiw - 博客园

2017年10月10日

[Angular & Unit Testing] TestBed.get vs Injector

摘要： Both what "TestBed.get" & "injector" trying to do is get service for the test component. But there is some diffenece which determined when use which. 阅读全文

posted @ 2017-10-10 19:21 Zhentiw 阅读(1725) 评论(0) 推荐(0)

[Angular & Unit Testing] Automatic change detection

摘要： When you testing Component rendering, you often needs to call: For example: You can also set auto change detection: Add to providers: Tests wit auto c 阅读全文

posted @ 2017-10-10 16:51 Zhentiw 阅读(305) 评论(0) 推荐(0)

[Angular & Unit Testing] Testing Component with Store

摘要： When using Ngrx, we need to know how to test the component which has Router injected. Component: One thing we can test just for component wihtout temp 阅读全文

posted @ 2017-10-10 15:54 Zhentiw 阅读(590) 评论(0) 推荐(0)

[React] Use a Render Porp

摘要： More detail check LInk. Render Prop vs HOC: HOC version for withMouse: Problems: Indirection. We still have the same problem with indirection that we 阅读全文

posted @ 2017-10-10 00:27 Zhentiw 阅读(310) 评论(0) 推荐(0)

2017年10月5日

[React] Define defaultProps and PropTypes as static methods in class component

摘要： class Toggle extends Component { static propTypes = { defaultOn: PropTypes.bool, on: PropTypes.bool, onToggle: PropTypes.func, children: PropTypes.oneOfType([ PropTypes.func, ... 阅读全文

posted @ 2017-10-05 19:46 Zhentiw 阅读(311) 评论(0) 推荐(0)

2017年10月3日

[Python] Python's namedtuples can be a great alternative to defining a class manually

摘要： # Why Python is Great: Namedtuples # Using namedtuple is way shorter than # defining a class manually: >>> from collections import namedtuple >>> Car = namedtup1e('Car', 'color mileage') # Our new "... 阅读全文

posted @ 2017-10-03 20:59 Zhentiw 阅读(263) 评论(0) 推荐(0)

[Javascript] Identify the most important words in a document using tf-idf in Natural

摘要： Tf-idf, or term frequency-inverse document frequency, is a statistic that indicates how important a word is to the entire document. This lesson will e 阅读全文

posted @ 2017-10-03 20:38 Zhentiw 阅读(426) 评论(0) 推荐(0)

[Javascript] Classify JSON text data with machine learning in Natural

摘要： In this lesson, we will learn how to train a Naive Bayes classifier and a Logistic Regression classifier - basic machine learning algorithms - on JSON 阅读全文

posted @ 2017-10-03 20:23 Zhentiw 阅读(629) 评论(0) 推荐(0)

[Javascript] Classify text into categories with machine learning in Natural

摘要： In this lesson, we will learn how to train a Naive Bayes classifier or a Logistic Regression classifier - basic machine learning algorithms - in order 阅读全文

posted @ 2017-10-03 19:20 Zhentiw 阅读(235) 评论(0) 推荐(0)

[TS] Swap two element in the array (mutation)

摘要： Shuffling is a common process used with randomizing the order for a deck of cards. The key property for a perfect shuffle is that each item should hav 阅读全文

posted @ 2017-10-03 18:39 Zhentiw 阅读(527) 评论(0) 推荐(0)

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