I have a Heroku app using Node.js and Express, and I want to determine whether or not a certain file exists. However, it seems like the file is never found. I have the following path: The directory structure of my project looks like this: I am doing something wrong here? Or is this a Heroku issue? Answer Ok, I needed
Tag: fs
How to delete a file with an unknown extension using fs in NodeJS?
I want to delete a file named myfile with any extension. The error I get: But there is a file named myfile.jpg which I want to delete. Let’s pretend that we don’t know the extension. How can I delete it? Answer unlink doesn’t support regex to delete file. You will probably need to loop through the the folder and find
Node.js – Cannot append global variable when using fs
Im trying to read multiple xml files and parse data from them and i managed to do that but now new problem appeared. allData variable is never changed, no matter what i do. What am i supposed to do here? I dont know what to do or what to try, this is my first time working with files and im
Create big json object js
I am using Nodejs to Create a JSON file from a really large JSON object (1GB). In order to avoid memory problems, I’m using createWriteStream : After using Builder(custom function ) it will return a big object JSON. the final step is to create this file : but unfortunately, JSON.stringify cannot be used with such heavy Object JSON.stringify throws RangeError:
JS style-changes don’t get applied when inside request
I want to make it such that an image on a website gets its “onclick” event disabled and a gray filter applied, if a certain file on the same domain is not found. I want to use purely JS and have tried this so far: I have the image initialized and displayed. Thus image.onclick = “” and image.style.filter = “grayscale(100%)
How to safely write multiple files at once?
I’m trying to write multiple audio files from URL at once in node.js. Here’s a code that seems to work, but I’m not sure if this is a safe way to do it since there are many asynchronous callbacks in a for loop. Is this safe to use this code? If not, how can I fix it? ADDED: Or is
How to read and open two different files in nodejs?
I have observed in this code that we can’t open the file after we have readFile. The computer complains about Error [ERR_STREAM_WRITE_AFTER_END]: write after end Of course if I remove the readFile function then this error goes away but I want to understand why this error is occurring even though I am using two different files for reading and opening.
Read all .md files, convert them to html and send them
I use fs to read the file which is in .md format and I want to transform it into html file. This is my code so far: the file is situated in that folder and has that name. This function puts in console the content of the .md file. For converting it to html I added this: It puts the
nodejs – replace a string everywhere in a large file
I have some huge files which are difficult to read in memory. I need to read each line and then replace double quotes if found and edit the same file. Right now, I am reading the file line by line, storing in an array and overwriting the same file. But, that’s giving memory issue for big files. Any pointers ?
Recursively read a directories with a folder
I’ve been trying to request a recursively read a directory with fs module. I had problems along the way, its only giving me a file name. Here’s how I need it to be: File name. And also a directory of that file. This results may be as an object or bulked into an array. Anyone please help. Thanks. Answer Here