fs

问题 I'm getting a 'fs.readFileSync is not a function' in Chrome debugger after trying to call readFileSync(); I call it... const fs = require('fs'); call the function... let content = fs.readFileSync('/path/to/my/file.stuff'); And attempt to display content.. console.log(content); I get nothing. When I do... console.log(fs); I appear to get a generic javascript object... I'm completely stuck. Meteor version: 1.5.1 npm version: 3.10.10 node version: v6.10.1 回答1: Thanks for all the answers! I have

问题 I'm working on an app built with electron, it should work with wavesurfer.js to display a waveform representing the audio file. However, I'm having trouble opening the file using the fs module and pushing the file content to wavesurfer via a Blob. The file loads and everything seems to work but when decoding wavesurfer says Error decoding audiobuffer . Two things I thought maybe could influence this: The fs.readFile function takes an encoding as second parameter The Blob constructor takes an

问题 I want to make this code to change filename if file exists instead of overwritng it. var fileName = 'file'; fs.writeFile(fileName + '.txt', 'Random text', function (err) { if (err) throw err; console.log('It\'s saved!'); }); Something like: var fileName = 'file', checkFileName = fileName, i = 0; while(fileExists(checkFileName + '.txt')) { i++; checkFileName = fileName + '-' + i; } // file-1, file-2, file-3... fileName = checkFileName; fs.writeFile(fileName + '.txt', 'Random text', function

问题 I have import fs from 'fs' and in my package.json I have Then I run the command > npm i fs > fs@0.0.2 node_modules/fs next in my React store I import 'fs' module import fs from 'fs' However when I try to use fs I don't see methods except for constructor and a few other __methods. I don't see the method createReadStream or any other file manipulation methods. Does anybody know what is wrong? (using Webpack) and can give more information upon request, but I am getting this far... ps: why is it

问题 I am using tail-stream to get data from a csv file and converting each csv record to json format and printing it. But tail-stream is not printing the last line of the file it is keeping it as a buffer, and if I update the file all the rows from previous last(the buffered last row) row to updated last row(excluding last row) are printed, its again storing the latest last row in buffer So is this the behavior of the tail-stream or is there any wrong in my code https://www.npmjs.com/package/tail

问题 This question already has answers here : Why is my variable unaltered after I modify it inside of a function? - Asynchronous code reference (6 answers) Closed 4 years ago . #!/usr/bin/env node var fs = require('fs') , async = require('async') , program = require('commander') program .version('0.0.1') .usage('<keywords>') .parse(process.argv) async.waterfall([ fs.readdir.bind(fs, __dirname), parseHTML, ], saveResult) function parseHTML(files, callback) { var result = [] files.forEach(function

问题 I have a little website in node.js, when a people want to sign up we call a function (a external file) here the part where i write the JSON : { nouveauMembre = {}; nouveauMembre.pseudo = query.pseudo; nouveauMembre.password = query.password; listeMembre[listeMembre.length] = nouveauMembre; contenu_fichier = JSON.stringify(listeMembre); fs.writeFileSync("membres.json", contenu_fichier, 'utf-8'); } we write the pseudo and password in the JSON menbres.json but i want to write another file wich

问题 I'm new with nodeJS and MongoDB. I have this code: var fs = require('fs'); var mongojs = require('mongojs'); var db = mongojs('monitor', ["configurations"]); fs.readFile('json/object1.json', 'utf8', function (err, data) { if (err) throw err; console.log(data); db.configurations.insert(data, function(err, doc) { console.log(data); if(err) throw err; }); }); no data insered to the mongodb, and I've got no error. the both console.log(data) print the json string as well. 回答1: Try to parse it as

问题 I need to get zip from rest call (for simulation I use postman with binary option for post and add a little zip file with folder and html file),during the simulation I want to get the data with express and extract the zip and put in some folder under C drive. Currently when I run the following program(this is all the code which i've tried) but im getting error events.js:85 throw er; // Unhandled 'error' event ^ Error: incorrect header check at Zlib._handle.onerror (zlib.js:366:17) var express

问题 Assume we have such a program: // imagine the string1 to string1000 are very long strings, which will take a while to be written to file system var arr = ["string1",...,"string1000"]; for (let i = 1; i < 1000; i++) { fs.write("./same/path/file.txt", arr[i], {flag: "a"}}); } My question is, will string1 to string1000 be gurantted to append to the same file in order? Since fs.write is async function, I am not sure how each call to fs.write() is really executed. I assume the call to the function