const resultFilePath = path.join(resultDirPath, 'data.json'); // check if the data directory exists; create if it's necessary // if the data.json file existed - delete all data // ...if not existed - create empty !fs.existsSync(resultDirPath) && fs.mkdirSync(resultDirPath); fs.w...
// check if the file exists and is not a directory function tryFile(requestPath) { var fs = NativeModule.require('fs'); var stats = statPath(requestPath); if (stats && !stats.isDirectory()) { return fs.realpathSync(requestPath, Module._realpathCache); } return false; } // given ...
// Check if the file exists and is not a directory // if using --preserve-symlinks and isMain is false, // keep symlinks intact, otherwise resolve to the // absolute realpath. function tryFile(requestPath, isMain) { const rc = stat(requestPath); if (preserveSymlinks && !isMain) { ...
此方法将路径作为输入并测试用户的权限。...让我们看下面的示例,该示例使用fs.access()检查给定目录是否存在: const fs = require('fs'); // directory to check if exists const...'does not exist' : 'exists'}`); }); 查看本指南,以了解有关在Node.js应用程序中读写文件的更多信息。
exists node-path-is-absolute node-path-is-inside node-path-type node-pify node-pkg-dir node-postcss-value-parser node-prelude-ls node-process-nextick-args node-promise-inflight node-promise-retry node-promzard node-prr node-pump node-quick-lru node-randombytes node-read node-readable-stream ...
Module._cache=Object.create(null);// 这里先定义了一个缓存的对象// ... ...// Check the cache for the requested file.// 1. If a module already exists in the cache: return its exports object.// 2. If the module is native: call// `NativeModule.prototype.compileForPublicLoader()` an...
Check if a Collection Exists in MongoDB Using NodeJS To find if a collection exists, we first need to connect with the MongoDB server, and then we need to query like this: dbs.collection("Your_collection_name").find().toArray(function(err, res) { if ( res.length > 0 ) { console...
Module._cache=Object.create(null);// 这里先定义了一个缓存的对象// ... ...// Check the cache for the requested file.// 1. If a module already exists in the cache: return its exports object.// 2. If the module is native: call// `NativeModule.prototype.compileForPublicLoader()` an...
nodejs rest-api event-driven-programming callback-functions callback-hell nodejs-interview-questions Resources Readme Activity Stars 3.1k stars Watchers 51 watching Forks 1k forks Report repository Releases No releases published Packages No packages published Contributors 24 + 10 contributors...
I installed node-v7.6.0-x64 on windows 10 and when installation I got the following error but the installation completed. Warning 1909. Could Not Create Shortcut Node.js command prompt.lnk. Verify that the destination folder exists and t...