All Questions
Tagged with node.js javascript
177,498
questions
3219
votes
34
answers
2.3m
views
Using async/await with a forEach loop
Are there any issues with using async/await in a forEach loop? I'm trying to loop through an array of files and await on the contents of each file.
import fs from 'fs-promise'
async function ...
- 52.8k
3085
votes
41
answers
1.8m
views
How do I pass command line arguments to a Node.js program and receive them?
I have a web server written in Node.js and I would like to launch with a specific folder. I'm not sure how to access arguments in JavaScript. I'm running node like this:
$ node server.js folder
here ...
- 33.9k
2191
votes
17
answers
586k
views
How to decide when to use Node.js?
I am new to this kind of stuff, but lately I've been hearing a lot about how good Node.js is. Considering how much I love working with jQuery and JavaScript in general, I can't help but wonder how to ...
- 116k
2111
votes
18
answers
2.1m
views
Writing to files in Node.js
I've been trying to find a way to write to a file when using Node.js, but with no success. How can I do that?
- 23k
1833
votes
42
answers
2.8m
views
map function for objects (instead of arrays)
I have an object:
myObject = { 'a': 1, 'b': 2, 'c': 3 }
I am looking for a native method, similar to Array.prototype.map that would be used as follows:
newObject = myObject.map(function (value, ...
- 115k
1765
votes
36
answers
2.9m
views
How do I completely uninstall Node.js, and reinstall from beginning (Mac OS X)
My version of node is always v0.6.1-pre even after I install brew node and NVM install v0.6.19.
My node version is:
node -v
v0.6.1-pre
NVM says this (after I install a version of node for the first ...
- 42k
1709
votes
42
answers
553k
views
How do I debug Node.js applications?
How do I debug a Node.js server application?
Right now I'm mostly using alert debugging with print statements like this:
sys.puts(sys.inspect(someVariable));
There must be a better way to debug. I ...
- 29k
1622
votes
33
answers
1.6m
views
How do you get a list of the names of all files present in a directory in Node.js?
I'm trying to get a list of the names of all the files present in a directory using Node.js. I want output that is an array of filenames. How can I do this?
- 20.1k
1562
votes
13
answers
528k
views
What is the purpose of Node.js module.exports and how do you use it?
What is the purpose of Node.js module.exports and how do you use it?
I can't seem to find any information on this, but it appears to be a rather important part of Node.js as I often see it in source ...
- 24.1k
1560
votes
11
answers
931k
views
Read environment variables in Node.js
Is there a way to read environment variables in Node.js code?
Like for example Python's os.environ['HOME'].
- 52.9k
1517
votes
23
answers
1.3m
views
Where does npm install packages?
Can someone tell me where can I find the Node.js modules, which I installed using npm?
- 21.3k
1510
votes
21
answers
968k
views
How can I get the full object in Node.js's console.log(), rather than '[Object]'?
I have this object:
const myObject = {
"a":"a",
"b":{
"c":"c",
"d":{
"e":"e",
"...
user1372449
1459
votes
25
answers
1.1m
views
Sending command line arguments to npm script
The scripts portion of my package.json currently looks like this:
"scripts": {
"start": "node ./script.js server"
}
...which means I can run npm start to start the ...
user291545
1322
votes
11
answers
846k
views
Using Node.js require vs. ES6 import/export
In a project I am collaborating on, we have two choices on which module system we can use:
Importing modules using require, and exporting using module.exports and exports.foo.
Importing modules using ...
- 13.9k
1262
votes
3
answers
1.3m
views
How do I get started with Node.js [closed]
Are there any good resources to get started with Node.JS? Any good tutorials, blogs or books?
Of course, I have visited its official website http://nodejs.org/, but I didn't think the documentation ...