log('文件存在') } catch (error) { if (error.code === 'NoSuchKey') { console.log('文件不存在') } } } // 用于判断未开启版本控制状态的Bucket中的Object是否存在。 // yourObjectName填写不包含Bucket名称在内的Object的完整路径,例如example/test.txt。 const name = 'yourObjectName' isExist...
fs.exists(realPath,function(exists){if(!exists){ consloe.log(reaPath+ ' not exists.'); }else{//do something} }); }); 以上两种方法都可以在目录正确和文件存在的情况下,正确的执行do something了。 nodejs新手,如有错误之处,请见谅。如帮忙指出,更是不胜感激。
Node.js 教程 Node.js 就是运行在服务端的 JavaScript。 Node.js 是基于Chrome JavaScript 运行时建立的一个平台。 Node.js 是事件驱动、非阻塞式 I/O 的模型,基于Google的V8引擎,执行Javascript速度非常快,因此Node性能非常好。本课程是 Nodejs 入门课程可学习进程 文
lib/fs.js @@ -228,9 +228,9 @@ fs.exists = function(path, callback) { function cb(err, stats) { if (callback) callback(err ? false : true); } }; }, 'fs: exists() is deprecated.'); Copy link Member bnoordhuisDec 15, 2014 ...
// Check if a directory exists function dirExists(path, callback) { fs.stat(path, function(err, stats) { if(err) return callback(err); var exists = stats.type === "DIRECTORY"; callback(null, exists); }); }; // Get the size of a file in KB function fileSize(path, callback...
nodejs fs.exists的处理 http://nodejs.org/api/fs.html#fs_fs_exists_path_callback 问题描述: 数组arr存放了一组文件路径,循环检测每一个文件是否可达,如果可达做进一步的处理。 1. 代码如下: vari,len,fp arr=["\\略\\ext\\app\\Controller.js","\\略\\application\\Application.js","\\略\\...
constdbResponse =awaitthis.client.databases.createIfNotExists({id:this.databaseId })this.database = dbResponse.database debug('Setting up the database...done!') debug('Setting up the container...')constcoResponse =awaitthis.database.containers.createIfNotExists({id:this.collectionId })this...
FilterFolderClosed FilterFolderOpened FilterPendingChanges FilterPinnedProperties FilterUser FinalState FindDown FindInFile Findnext FindPrevious FindSymbol FirstIndent FirstOfFourColumns FirstOfFourRows FirstOfThreeColumns FirstOfThreeRows FirstOfTwoColumns FirstOfTwoRows FitSelection FitToScreen FixedLayou...
With commonjs (require), this can be done with an index.js file at the folder's root or the package.json.main field. With ESM (import), if a package.json exists on the root, the field "exports" allow specifying the module's root file. If no package.json exists, you may put an...
Node.js converts SANs (Subject Alternative Names) to a string format. It uses this string to check peer certificates against hostnames when validating connections. The string format was subject to an injection vulnerability when name constraints were used within a certificate chain, allowing the by...