而家請programmer 係咪真係咁難請?

你公司出幾多先？有冇30k?programmer咁專 就算fg都最少30k+啦

感謝回覆

平時上個個課無用change detection呢個字眼，
請問係咪initiate state => render => componentDidMount => re-render

optimize react app performance,
用codespiltting(dynamic import, lazy, suspense) , useMemo(menorize the return value of function), useCallback( for memorizing function)

但好撚多公司係請frontend developer 當full stack 呢
識react 又要你識java c# 仲要做埋deploy

frontend = full-stack
full-stack = dev + devops

靜雞雞講你知細公司開緊50kup

useCallback for object because object===object > false in js
react new

有問嗰間高人工
唔等於冇問嗰啲會低人工

useMemo(menorize the return value of function),

as react render and re-render will re-initiazlize the entire functional component, if the component inside has a complexe and expensive calculation, it will re-calculate it everytime, use memo can use for memorizes the return value of the expensive calculation.


useCallback( for memorizing function, not the output)

送貨 office

其實背晒啲問題答案係咪OK
就算唔係唔識, 都唔曉答得好

真，你D資料同contact 比人周圍賣。
轉工旺季，好多人cold call 你。

大部份公司唔會問嘅野唔建議prep緊interview嘅人哂時間

explain virtual dom , explain fiber

React + node express mongooseDB

你開咩價先