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error.js

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const path = require('path')

// const sourceMap = require('source-map')

// vendor.07ead1af6cc6c28c8a81

var logPath = path.resolve(__dirname, 'dist/static/js/vendor.07ead1af6cc6c28c8a81.js.map');

var fs = require("fs");

var data = '';

var sourceMap = require("source-map-builder");

fs.readFile(logPath, 'utf-8', function (error, data) { //读取文件，回调函数第一个参数表示错误信息，第二个参数为读取的文本内容

if (error) {

console.log(error);

} else {

console.log('end async read'); //异步读取结束

// console.log(typeof JSON.parse(data));

// console.log(JSON.parse(data));

var smb = new sourceMap.SourceMapBuilder(JSON.parse(data));

console.log(smb.getSource(1, 28));

// sourceMap.SourceMapConsumer.with(JSON.parse(data), null, consumer => {

// // console.log(consumer.allGeneratedPositionsFor({ line: 2 }));

// let originPos = consumer.generatedPositionFor({

// source: "vendor.js",

// // line: errorMessage.lineno,

// line: 2, column: 10

// // line: 1104,

// // column: 20

// });

// setTimeout(() => {

// console.log(originPos);

// }, 1000);

// // console.log(consumer.originalPositionFor({

// // line: 600,

// // column: 28

// // }))

// });

}

});