Zhentiw - 博客园

2019年1月30日

[Algorithm] Find Max Items and Max Height of a Completely Balanced Binary Tree

摘要： A balanced binary tree is something that is used very commonly in analysis of computer science algorithms. In this lesson we cover how to determine th 阅读全文

posted @ 2019-01-30 16:03 Zhentiw 阅读(239) 评论(0) 推荐(0)

[Angular] AfterContentChecked && AfterViewChecked

摘要： AfterContentChecked & AfterViewChecked are called after 'OnChanges' lifecycle. And each time 'ngOnChanges' triggered, ngAfterContentChecked and ngAfte 阅读全文

posted @ 2019-01-30 15:46 Zhentiw 阅读(1041) 评论(0) 推荐(0)

2019年1月29日

[Algorithom] Shuffle an array

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 @ 2019-01-29 19:59 Zhentiw 阅读(291) 评论(0) 推荐(0)

[TypeScript] Work with DOM Elements in TypeScript using Type Assertions

摘要： The DOM can be a bit tricky when it comes to typing. You never really know exactly what you're going to get, so you have to educate your codebase into 阅读全文

posted @ 2019-01-29 19:14 Zhentiw 阅读(582) 评论(0) 推荐(1)

[Tools] Unlock TypeScript's Features in Vanilla JS with @ts-check and JSDoc

摘要： TypeScript can help you with your plain JavaScript files if you add a simple //@ts-check comment. Then you can enhance the experience by add proper JS 阅读全文

posted @ 2019-01-29 19:04 Zhentiw 阅读(404) 评论(0) 推荐(0)

[Angular] Two things about OnChanges Lifecycle hook

摘要： 1. ngOnChanges is called before ngOnInit but after constructor() 2. ngOnChanges is called because of @Input() obj, obj's reference changes. If you mut 阅读全文

posted @ 2019-01-29 18:56 Zhentiw 阅读(190) 评论(0) 推荐(0)

[Functional Programming 101] runWIth, evalWith, execWith

摘要： Recentlly, I am learning crocks.js ADT libaray. In the beginning, it is hard to understand when to use 'runWith', 'evalWith', 'execWith'. Until I went 阅读全文

posted @ 2019-01-29 17:22 Zhentiw 阅读(219) 评论(0) 推荐(0)

[Functional Programming Monad] Modify The State Of A State Monad

摘要： Using put to update our state for a given state transaction can make it difficult to modify a given state based on its previous value. In this lesson 阅读全文

posted @ 2019-01-29 17:13 Zhentiw 阅读(144) 评论(0) 推荐(0)

[Functional Programming Moand] Update The State Of A State Monad (put)

摘要： Stateful computations require the ability for their state to change overtime. We take a look on one way to replace the state portion of our stateful d 阅读全文

posted @ 2019-01-29 16:36 Zhentiw 阅读(196) 评论(0) 推荐(0)

[Functional Programming Monad] Substitute State Using Functions With A State Monad (get, evalWith)

摘要： We take a closer look at the get construction helper and see how we can use it to lift a function that maps the state portion and updates the resultan 阅读全文

posted @ 2019-01-29 16:15 Zhentiw 阅读(150) 评论(0) 推荐(0)

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