Terry-Su
18.0.1 改了index.js里的代码，再次debugger，仍然还是上次的旧代码。不管多少次重新启动debugger还是一样的。
`'use strict';
var _React = React, useEffect = _React.useEffect, useRef = _React.useRef;
function App() { var ref = useRef(null);
useEffect(function () {
debugger;
// beforeActivate
console.log(123);
ref.current.focus();
}, []);
return React.createElement(
'div',
null,
React.createElement('input', { ref: ref }),
React.createElement(
'p',
null,
'Hello, React Source Code!'
),
React.createElement(
'h3',
null,
'Hello, React Source Code!',
React.createElement(
'span',
null,
'123'
)
)
);
}
ReactDOM.render(React.createElement(App, null), document.querySelector('#app')); //# sourceMappingURL=data:application/json;charset=utf-8;base64,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`
` const {useEffect,useRef} = React;
function App() {
useEffect(() => { console.log(123) }, []) useEffect(() => { console.log(456) }, []) return
Hello, React Source Code!
Hello, React Source Code!123
ReactDOM.render(<App/>, document.querySelector('#app'))`
