...ntent)=>IO.of((content)=>content.replace(a,b)); //写入字符串 var writeFile = (content)=>IO.of(fs.writeFileSync(dest.txt,content)); 当具体的函数被IO容器包裹起来而实现延迟执行的效果时,就无法按原来的方式使用compose( )运算符直接对功能进行组合...
...gPath = (imgSavePath + src).replace(/?|&/g, _); //替换特殊符号 let writeFile = fs.createWriteStream(imgPath), extname; request(_src || (addr + src), {timeout: 60000}).on(response, function(response){...
...gPath = (imgSavePath + src).replace(/?|&/g, _); //替换特殊符号 let writeFile = fs.createWriteStream(imgPath), extname; request(_src || (addr + src), {timeout: 60000}).on(response, function(response){...
...se) => { if (requestErr) { console.error(requestErr); } else { writeFile(article.html, response.body, (writeErr) => { if (writeErr) { console.error(writeErr); } else...
... Promises 替代回调吧。 Bad: import { get } from request; import { writeFile } from fs; get(https://en.wikipedia.org/wiki/Robert_Cecil_Martin, (requestErr, response) => { if (requestErr) { console....
... Promises 替代回调吧。 Bad: import { get } from request; import { writeFile } from fs; get(https://en.wikipedia.org/wiki/Robert_Cecil_Martin, (requestErr, response) => { if (requestErr) { console....
... Promises 替代回调吧。 Bad: import { get } from request; import { writeFile } from fs; get(https://en.wikipedia.org/wiki/Robert_Cecil_Martin, (requestErr, response) => { if (requestErr) { console....
...ytes., The first byte is:, buffer[0]); }); 有一个名为writeFile的函数与其类似,用于将文件写到磁盘上。 const {writeFile} = require(fs); writeFile(graffiti.txt, Node was here, err => { if (err) console.log(`F...
...rr, data){ if(err){ console.error(err); }else{ fs.writeFile(output.txt, data); } 可以看到,运用fs的callback函数,可以直接在readFile里写writeFile, 不需要重新定义变量。 再写一个fs中的建立目录和移除目录的方法,同样有同......
...veWebpage (url, filePath) { return getWebpage(url, filePath) .then(writeFile) } function getWebpage (url) { return new Promise (function (resolve, reject) { request.get(url, functi...
...name; fs.readFile(req.files[0].path, function (err, data) { fs.writeFile(newFile, data, function (err) { if (err) { console.log(错误:, err) } else ...
... // 把各期的编码 写入到文件 方便使用 fs.writeFile(./data.txt, params.join(,), function(){ console.log(完成) }); }) }).on(error, function() { console.log(获取数据出错!) }) ...
...name; fs.readFile( req.files[0].path, function (err, data) { fs.writeFile(des_file, data, function (err) { if( err ){ console.log( err ); }else{ ...
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