在Node.js中逐行读取文件的最简单方法是使用本地fs模块的fs.readFileSync()方法: constfs=require('fs');try{// read contents of the fileconstdata=fs.readFileSync('file.txt','UTF-8');// split the contents by new lineconstlines=data.split(/\r?\n/);// print all lineslines.forEach((line...
在Node.js中逐行读取文件的最简单方法是使用本地fs模块的fs.readFileSync()方法: 代码语言:javascript 复制 constfs=require('fs');try{// read contents of the fileconstdata=fs.readFileSync('file.txt','UTF-8');// split the contents by new lineconstlines=data.split(/\r?\n/);// print all ...
node line-reader.js 时长感人,内存占用极少。 The script uses approximately 2.48 MB 其它方式 还有其他选项可以使用 Node.js 逐行读取文件。有一个非常流行的NPM模块叫做readline,但由于与原生Node.js模块的名称冲突,现在它已重命名为Line By LIne。它的工作方式与本机readline模块非常相似 其他不太流行但可用的模...
exports.readWriteFileByLineWithProcess= readWriteFileByLineWithProcess b. 功能的调用:index.js varrwByLine = require('./lib/readWriteFileByLine.js')//按行读写,对行做字符替换处理varreadName = './obj.txt';varwriteName = './rt.txt'; rwByLine.readWriteFileByLineWithProcess(readName,writeNam...
➜ lineByLineFromFile git:(master) ✗ node app.js 访问时间:[2016-12-09 13:56:48.407],访问地址:"http://www.example.com/oc/v/account/login.html" 访问时间:[2016-12-09 14:00:10.618],访问地址:"http://www.example.com/oc/v/account/user.html" ...
Node.js Version: 10.1.0 OS: Windows/Ubuntu Scope: code Module: Readfile Background Dear awesome people, I am trying to read a several GB sized file line by line. I want to process each line and after that write it to a file. I don't want...
Nodejs读写文件 1 一.直接操作文件2最简单的两个fs.readFile和fs.writeFile3举例:这个程序的功能是将一个比较大json格式的文件转换成你想自己要格式的文件。4varfs = require('fs');5fs.readFile('./json.json',function(err,data){6if(err)throwerr;78varjsonObj =JSON.parse(data);9varspace = ' ...
rl.on('line',(line) =>{constarr = line.split(' ');console.log('访问时间:%s %s,访问地址:%s', arr[0], arr[1], arr[13]); }); 运行结果如下: ➜ lineByLineFromFile git:(master) ✗ node app.js 访问时间:[2016-12-09 13:56:48.407],访问地址:"http://www.example.com/oc/v...
Asynchronous line-by-line file reader for node.js. Contribute to nickewing/line-reader development by creating an account on GitHub.
Also, note--importertakes the (absolute or relative to pwd) path to a js file, which needs to have a defaultmodule.exportsset to the importer function. See our testfixturesfor example. The--source-mapoption accepts a boolean value, in which case it replaces destination extension with.css....