Zhentiw - 博客园

2020年8月6日

摘要： Evaluation Metrics are how you can tell if your machine learning algorithm is getting better and how well you are doing overall. Accuracy x x x Accura 阅读全文

posted @ 2020-08-06 21:04 Zhentiw 阅读(213) 评论(0) 推荐(0)

[CSS] Create Basic Effects with CSS box-shadow

摘要： Learn about the required and expanded syntax of CSS box-shadow. Then, create various kinds of effects such as shadows inside the element, a shadow tha 阅读全文

posted @ 2020-08-06 15:47 Zhentiw 阅读(138) 评论(0) 推荐(0)

[Javascript] Natively Format JavaScript Dates and Times

摘要： The ability to natively format dates and times using the browser is impressive. You may find yourself not needed to grab libraries such as moment.js o 阅读全文

posted @ 2020-08-06 04:22 Zhentiw 阅读(114) 评论(0) 推荐(0)

2020年8月4日

[AWS] Build an App with AWS CDK

摘要： Install: npm i -g aws-cdk Init a project: cdk init sample-app --language=typescript To verify it works: npm run build Should have no error. Developeme 阅读全文

posted @ 2020-08-04 23:04 Zhentiw 阅读(646) 评论(0) 推荐(0)

2020年7月31日

[XState] History state

摘要： const displayMachine = createMachine({ initial: "hidden", states: { hidden: { on: { TURN_ON: "visible.hist", }, }, visible: { initial: "light", states 阅读全文

posted @ 2020-07-31 16:22 Zhentiw 阅读(170) 评论(0) 推荐(0)

[XState] Nested State

摘要： When dragging, we want to have two modes, one in 'normal' mode, another one is 'locked', we enter the locked mode by holde on 'shift' key. To achieve 阅读全文

posted @ 2020-07-31 16:14 Zhentiw 阅读(193) 评论(0) 推荐(0)

2020年7月30日

[Postgres] Bulk Insert and Export Data with csv Files with Postgres copy Command

摘要： When working with databases, it seems inevitable that you will find yourself needing to export data from a table to send along to another team, compan 阅读全文

posted @ 2020-07-30 15:12 Zhentiw 阅读(212) 评论(0) 推荐(0)

2020年7月29日

[XState] Delay Transitions

摘要： import { createMachine, assign, interpret } from "xstate"; const elBox = document.querySelector("#box"); const elBody = document.body; const assignPoi 阅读全文

posted @ 2020-07-29 20:02 Zhentiw 阅读(211) 评论(0) 推荐(0)

[XState] Transient transitions

摘要： It uses " " as key, by default, this is the inital state, it often uses with 'cond' import { createMachine, assign, interpret } from "xstate"; const e 阅读全文

posted @ 2020-07-29 19:51 Zhentiw 阅读(193) 评论(0) 推荐(0)

[CSS 3] Add a Cutout Notch to an HTML Element with a CSS Polygon Clip-Path

摘要： In this lesson, we'll learn how to use CSS Clip Path to add a notch clip-path: polygon( 0% 10%, 10% 0%, /*topleft*/ 92% 0, 100% 8%, /*top right*/ 100% 阅读全文

posted @ 2020-07-29 15:21 Zhentiw 阅读(103) 评论(0) 推荐(0)

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