in nodejs, each file is a module, but is isolated by default how to ask nodejs not only...
IP屬地：寧夏
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CommonJS module & module wrapper & module caching -
Nodejs behind the sceneJS has no capability of controlling network or file system (this language doesn't do th...
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typing hooksuseState: simple state values when initial value is only know at a future point in time...
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why TypeScripttypes are associated with run-time valaues type checking is not done in runtime but bef...
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typing react propshttps://react-typescript-cheatsheet.netlify.app/docs/basic/getting-started/basic_type_e...
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HOCcomponent transforms props into UI, HOC transforms component into another component. co...
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this in 7 casesGlobal Context: (outside of any function), this refers to the global object, which is...
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try catch finally
In atry...catch...finallyscenario, thefinally[https://developer.mozilla.org/en-US/docs/...
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Object to Primitive conversion: valueOf/toString
Object to Primitive Conversion: In JavaScript, when you use an object in a context wher...
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catch()為參數(shù)創(chuàng)建塊作用域
try中捕獲到錯(cuò)誤以后，會(huì)把異常對(duì)象推入一個(gè)可變對(duì)象并置于作用域的頭部。在catch代碼塊內(nèi)部，函數(shù)的所有局部變量將會(huì)被放在第二個(gè)作用域?qū)ο笾?，catch中的代碼執(zhí)行完，會(huì)立...
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sass-loader和less-loader
這兩個(gè)loader看名字也能猜到，用來處理sass和less樣式的。 安裝：npm i -D sass-loader less-loader 在config中進(jìn)行配置，代碼在...
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babel-loader: transpile modern js
寫完代碼發(fā)現(xiàn)自己的js代碼不能運(yùn)行在IE10或者IE11上，然后嘗試著引入各種polyfill babel的出現(xiàn)提供了便利，將高版本的ES6甚至ES7轉(zhuǎn)為ES5，兼容低版本瀏...
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useState: async/copy then setState/arrow func if based on previous stateReact hooks are used by functional components to provide the same functionality as clas...
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useReducerThen you can replace useState: useReducer is very similar to useState[https://react.dev...
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render order vs mount order
Therender orderis executed in the order of the react component tree, however, themount ...
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component composition with props.childrenfunction A({children}){ console.log("A"); const [state, setState]=useState(0); useEffec...
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shallow copy vs deep clone對(duì)象復(fù)制：分類討論 1.可以用lodash 2.不能用庫(kù)，可以用瀏覽器自帶api，structuredClone const obj1 = { a: 0, b: { c: 0...
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Function Composition: compose/pipehttps://www.educative.io/answers/function-composition-in-javascript Function compositio...
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reduceRight((acc, curVal, index, array)ThereduceRight()method ofArray[https://developer.mozilla.org/en-US/docs/Web/JavaScript/...