Zhentiw - 博客园

2020年7月21日

[XState] Drag and Drop example (data-state, attr in css)

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

posted @ 2020-07-21 18:46 Zhentiw 阅读(196) 评论(0) 推荐(0)

[Angular] Inherit Parent Route Parameters by Default with ParamsInheritanceStrategy

摘要： Right now, we're getting the ID route parameter off the of the parent route. This is because we want the info and items components to use the ID of th 阅读全文

posted @ 2020-07-21 15:43 Zhentiw 阅读(212) 评论(0) 推荐(0)

[Web] Use Web Speech API to make the browser speak out loud using SpeechSynthesis

摘要： Using the https://developer.mozilla.org/en-US/docs/Web/API/Web_Speech_API(Web Speech API) it is possible to use speech synthesis in the browser withou 阅读全文

posted @ 2020-07-21 15:35 Zhentiw 阅读(171) 评论(0) 推荐(0)

[React] useImperativeHandle + forwardRef

摘要： We have a message app: function App() { const messageDisplayRef = React.useRef() .... const scrollToTop = () => messageDisplayRef.current.scrollToTop( 阅读全文

posted @ 2020-07-21 15:26 Zhentiw 阅读(331) 评论(0) 推荐(0)

2020年7月20日

[XState] Assignement actions

摘要： Let's we want to keep tracking how many times on element was click inside Machine model. We can use 'context' & 'assign' function. import { assign, cr 阅读全文

posted @ 2020-07-20 22:36 Zhentiw 阅读(192) 评论(0) 推荐(0)

[XState] Using global actions prop for testing

摘要： Let's say we have a State Machine Model: import { createMachine, interpret } from "xstate"; const elBox = document.querySelector("#box"); const setPoi 阅读全文

posted @ 2020-07-20 22:25 Zhentiw 阅读(174) 评论(0) 推荐(0)

2020年7月17日

[ML L9] Clustering (K-MEANS)

摘要： The k-means algorithm captures the insight that each point in a cluster should be near to the center of that cluster. It works like this: first we cho 阅读全文

posted @ 2020-07-17 20:52 Zhentiw 阅读(259) 评论(0) 推荐(0)

2020年7月16日

[ML L8] Outliers -- clean outliers

摘要： #!/usr/bin/python import random import numpy import matplotlib.pyplot as plt import pickle from outlier_cleaner import outlierCleaner from sklearn.lin 阅读全文

posted @ 2020-07-16 23:25 Zhentiw 阅读(301) 评论(0) 推荐(0)

[XState] A toggle active and inactive example

摘要： import { createMachine, interpret } from "xstate"; const elBox = document.querySelector("#box"); const machine = { initial: "inactive", states: { inac 阅读全文

posted @ 2020-07-16 18:48 Zhentiw 阅读(173) 评论(0) 推荐(0)

2020年7月15日

[XState] Code a state machine

摘要： State + Event + Interpreter: const machine = { initial: "idle", states: { idle: { on: { FETCH: "pending", }, }, pending: { on: { RESOLVE: "resolved", 阅读全文

posted @ 2020-07-15 03:17 Zhentiw 阅读(180) 评论(0) 推荐(0)

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