Zhentiw - 博客园

2020年3月26日

[HTML 5 Performance] Measuring used JS heap size in chrome

摘要： In this lesson we will see how to measure the used JS heap size in chrome. This can be used for various needs from performance debugging to production 阅读全文

posted @ 2020-03-26 18:33 Zhentiw 阅读(280) 评论(0) 推荐(0)

[Javascript] Private class properties in Javascript

摘要： In this lesson we will learn about how to define real private properties in javascript classes. Before: class Pasta { constructor(name) { this._name = 阅读全文

posted @ 2020-03-26 18:29 Zhentiw 阅读(132) 评论(0) 推荐(0)

[Tools Vim] Open Files into Vim from the Terminal as buffers, splits, and tabs

摘要： You can open files into Vim directly from the terminal. This works for both single files and multiple files. In addition to reading these files into b 阅读全文

posted @ 2020-03-26 18:22 Zhentiw 阅读(105) 评论(0) 推荐(0)

2020年3月25日

[Angular Unit Testing] Testing component with content projection

摘要： Component to be tested: <ng-template #defaultPlaceholder> Loading... </ng-template> <div class="loading-container" *ngIf="loading$ | async"> <ng-conta 阅读全文

posted @ 2020-03-25 19:29 Zhentiw 阅读(3397) 评论(0) 推荐(0)

2020年3月24日

[Angular Unit Testing] Testing Component with ChangeDetectionStrategy.OnPush

摘要： Component: <div class="loading-placeholder" [ngClass]="extraClass">   <ng-container *ngIf="loadingService.config.showContent"> <ng-content></ng-c 阅读全文

posted @ 2020-03-24 22:15 Zhentiw 阅读(271) 评论(0) 推荐(0)

2020年3月23日

[Tools] Create Files in the Terminal from the Clipboard with PBPaste

摘要： You'll often find yourself going through a tutorial where you need to copy some code from a webpage and create a file and paste the contents onto your 阅读全文

posted @ 2020-03-23 16:26 Zhentiw 阅读(133) 评论(0) 推荐(0)

2020年3月22日

[Javascript] Create an Async Generator and Loop Through Generated Promises with "For Await Of" Loops

摘要： Generators can yield promises which can work with the "for await of" loop syntax. This lesson shows how all the pieces fit together and explains why t 阅读全文

posted @ 2020-03-22 02:59 Zhentiw 阅读(175) 评论(0) 推荐(0)

[Javascript] Use an Array of Promises with a For Await Of Loop

摘要： The "for await of" loop syntax enables you to loop through an Array of Promises and await each of the responses asynchronously. This lesson walks you 阅读全文

posted @ 2020-03-22 02:55 Zhentiw 阅读(118) 评论(0) 推荐(0)

[macOS] macOS Catalina 10.15: Setting up a Brand New Mac for Development

摘要： Read from blog 阅读全文

posted @ 2020-03-22 02:47 Zhentiw 阅读(178) 评论(0) 推荐(0)

[Javascript] NaN is number type and NaN === NaN is false

摘要： NaN == NaN // false NaN NaN // false Object.is(NaN, NaN) // true Number.isNaN(NaN) // true typeof NaN // number Because NaN is number type, so there i 阅读全文

posted @ 2020-03-22 02:24 Zhentiw 阅读(165) 评论(0) 推荐(0)

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