通过source-map.js结合source-map文件已经错误行列就能找到源码对应的行列。
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/source-map.js"></script>
<title>Document</title>
<script type="module">
window.onload=function(){
sourceMap.SourceMapConsumer.initialize({
"lib/mappings.wasm": "//repo.bfw.wiki/bfwrepo/js/mappings.wasm",
});
//加载map文件
fetch('/asset/main.js.map')
.then(response => response.text())
.then(data => {
const consumer = new sourceMap.SourceMapConsumer(data);
consumer.then(res => {
const data= res.originalPositionFor({ line: 1, column: 946});//把错误的行列数值输进去
console.log(data)//就能看到源代码中对应的错误行与列额
})
// 处理获取到的数据
// console.log(data);
})
.catch(error => {
// 处理错误
console.error(error);
});
}
</script>
<script src="/asset/mainnomap.js"></script>
<script>
window.onerror = function (msg, url, row, col, error) {
const obj = {
msg,
url,
row,
col,
};
console.log(obj);
};
</script>
</head>
<body>
看console
</body>
</html>
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