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24 lines
394 B
24 lines
394 B
const watch = (target, callback)=>{
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for(const key in target){
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if(typeof target[key] === 'object'){
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target[key] = watch(target[key], callback)
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}
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}
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return new Proxy(target, { set: callback })
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}
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const state = watch(
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{
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name: 'matt',
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friend: {
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name: 'bob'
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}
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},
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(target, prop, newValue) => {
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console.log(newValue);
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}
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)
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//state.name = 'Matthew'
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state.friend.name = 'Bilbo'
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