app.post('/upload', upload.single('file'),async(req, res) => {const{path: uploadedFilePath } = req.file;consttargetPath =resolve('uploads', req.file.originalname);try{awaitpromisify(fs.access)(targetPath); res.
In particular, checking if a file exists before opening it is an anti-pattern that leaves you vulnerable to race conditions: another process may remove the file between the calls to fs.exists() and fs.open(). Just open the file and handle the error when it's not there....
// Check if a file exists at the specified URLfunctionfileExists(url){returnnewPromise(resolve=>Windows.Web.Http.HttpClient().getAsync(newURI(url),Windows.Web.Http.HttpCompletionOption.responseHeadersRead).done(e=>resolve(e.isSuccessStatusCode),()=>resolve(false)));}// Show the favicon if ...
*/publicstaticStringgenerateEChartsBase64(String phantomjsUrl,String option){// 手动拼接option示例// String option = "{title:{text:'ECharts 示例'},tooltip:{},legend:{data:['销量']},xAxis:{data:['衬衫','羊毛衫','雪纺衫','裤子','高跟鞋','袜子']},yAxis:{},series:[{name:'销量',...
但有技术热情支持的文章,虽会迟到但不会缺席,我会用一系列文章来呈现微前端框架的方方面面,不仅是核心流程,更多的会投入到细节中去,原理的了解有助于我们更好的利用一些工具进而更好的工作,然而细节才会真正的帮助我们成长。关于微前端的系列文章,我会从乾坤源码分析开始,深入到import-html-entry(乾坤的一个重要...
If you have any questions during development, post them on the Issues page of GitHub.This API checks whether a bucket exists. If an HTTP status code 200 is returned, the
Translations can be submitted on theYew GitLocalize Repo. If you are interested in being the official moderator for a language, please reach out on Discord. Contributors Code Contributors This project exists thanks to all the people who contribute. ...
The router exists externally of the React Components, and the VDOM has to mount and unmount potentially frequently, introducing a possible slew of problems. React Router focuses on not just “single-level” routing, but enables - nay, empowers - the creation of HOCs that can “decide for ...
<script type="text/javascript" src="js/FileSaverNew.js"></script> 二、定义下载的方法 functiondownloadResultHtml(){ saveTextAs($("#resultText").html(), (projNo || "") + "保障性住房配建比例分析结果.html"); };functiondownloadResultTxt(){ ...
shell.grep('--','-v','path/to/file');// Search for "-v", no grep optionsshell.cp('-R','-dir','outdir');// If already using an option, you're done Global vs. Local We no longer recommend using a global-import for ShellJS (i.e.require('shelljs/global')). While still ...