readfile

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I have a code like this var fs = require ( 'fs' ); console . log ( "1" ); fs . readFile ( "./index.js" , function ( err , data ) { if ( err ) { console . log ( "err" ); } console . log ( "2" ); }); console . log ( "3" ); and the result will be 1 3 2 But I want 1 2 3 I have look through filesystem's document and it says With the asynchronous methods there is no guaranteed ordering. so the document says if I want my code result 1 2 3 it should be var fs = require ( 'fs' ); console . log ( "1" ); fs . readFile ( "./index.js" ,

So I used fs.readFile() and it gives me "FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - process out of memory" since fs.readFile() loads the whole file into memory before calling the callback, should I use fs.createReadStream() instead? That's what I was doing previously with readFile: fs.readFile('myfile.json', function (err1, data) { if (err1) { console.error(err1); } else { var myData = JSON.parse(data); //Do some operation on myData here } } Sorry, I'm kind of new to streaming; is the following the right way to do the same thing but with streaming? var readStream = fs

Say i have a file called "input.txt" that has a bunch of positive integers in it: 6 5 6 8 6 2 4 and so on....(one integer per line) I want to read this file and make it into an array. The first integer (in this case 6) tells the number of indexes or elements in the array, so 6 spots. The other numbers fill in the array starting at 0. So at index 0, the number is 5, at index 1 the number is 6, and so on. Can someone please show me how to read this file and make it into an array called A and return the integers in each index as n? this is what i have so far: import java.io.*; public class

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm trying to read an image from client side encoded in base64. How to read with nodejs? My code: // add to buffer base64 image var encondedImage = new Buffer(image.name, 'base64'); fs.readFile(encondedImage, "base64", function(err, buffer){ if ( err ) { console.log('In read file') console.log(err) } else { // check err lwip.open(buffer, 'jpg', function(err, image){ console.log('in open') if ( err ) console.log(err) if ( image ) console.log(image) // check 'err'. use 'image'. // image.resize(...), etc. }); } }) But, I got this error: In read

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: A new day brought new problem with Python, unfortunately :/ I have a file generated by my other app written in Java. This app generates files with some data, it's kind a random stuff 'cause I'm not able to say how many rows each file would have. Example file looks like this: 3 Sat Jan 21 00:00:00 2012 7 Sun Mar 11 00:00:00 2012 5 Fri Jan 1 00:00:00 2010 4 Sat Feb 5 00:00:00 2011 8 Sun Apr 11 00:00:00 2010 4 Wed Aug 24 00:00:00 2011 8 Sat Feb 20 00:00:00 2010 3 Thu Oct 13 00:00:00 2011 9 Fri Dec 17 00:00:00 2010 4 Tue Jul 20 00:00:00 2010 8

I am new to Go and I am trying to write a simple script that reads a file line by line. I also want to save the progress (i.e. the last line number that was read) on the filesystem somewhere so that if the same file was given as the input to the script again, it starts reading the file from the line where it left off. Following is what I have started off with. package main // Package Imports import ( "bufio" "flag" "fmt" "log" "os" ) // Variable Declaration var ( ConfigFile = flag.String("configfile", "../config.json", "Path to json configuration file.") ) // The main function that reads the

I'm currently working on a script which should analyze a dataset based on a 'configuration' file. The input of this file is for instance: configuration.txt: 123456, 654321 409,255,265 1 It can contain onther values as well, but they will al be numeric. In the example described above the file should be read in as follows: timestart <- 123456 timeend <- 654321 exclude <- c(409,255,265) paid <- 1 The layout of the configuration file is not fixed, but it should contain a starting time (unix) an ending time (unix) an array with numbers to exclude and other fields. In the end it should be

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am new to nodejs and callbacks. So I have this code where I read a file when a request to server is initiated via HTTP: var http = require("http"); var fs = require("fs"); http.createServer(function(request,response){ response.writeHead(200,{'Content-Type':'text/plain'}); response.end("Server runnning..."); fs.readFile('new.txt',function(err,data){ if(err){ console.error(err); return; } console.log(data.toString()); }); }).listen(1234); When I run the code, the contents of the file are displayed/logged twice on console. lorem ipsum lorem