This question already has answers here:
Check for current Node Version
(10 answers)
Closed 1 year ago.
I would like to know the current version of Node, such as the one obtained by the command line "node -v", but via a js function.
The NodeJS global object property process.version might be what you need.
Related
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How to get the path of current worksheet in VBA?
(5 answers)
Closed 6 days ago.
I need to access the windows directory in my project.
How can I get the windows path? I mean how can I get the path, which the Windows installed in it?
Thanks
I searched the web a lot, but nothing found.
You can use the "environ" function to retrieve the directory, as I show below:
Dim windowsDir As String
windowsDir = Environ("windir")
This question already has answers here:
Reading/parsing Excel (xls) files with Python [closed]
(13 answers)
Closed 9 months ago.
it displays the following error
this is the error
well i have already tried with diffrent file but it doesnt work
data1=pd.read_excel('second.xlsx',sheet_name="Sheet1")
have you tried passing engine="openpyxl" argument?
P.S this is where I found the answer https://stackoverflow.com/a/50815107
This question already has answers here:
'this' different between REPL and script
(2 answers)
Closed 4 years ago.
//test.js
console.log(this);
By executing the test.js with command 'node test.js', I got result of '{}'. But by executing the same code in REPL, I got tons of system information. Why this difference? Is it because of my configuration of Node?
Different execution contexts.
In node, any file you require is a module that has its own scope, by default an empty object (hence the {}), until you export something.
The repl, on the other hand, is its own execution context with a bunch of stuff already attached to it. You can even set things up to attach to it yourself (e.g. Convenient functions)
This question already has answers here:
node.js REPL "undefined"
(4 answers)
Closed 7 years ago.
I'm putting together a training video for the basics of Node. I'm demonstrating REPL and it seems no matter what I do I get "undefined". I've read several posts here and everyone seems to say it's normal because javascript always returns null but it just seems odd and I think my viewers will think I'm an idiot.
Is there anyway to turn it off or am I doing something wrong? I've attached a screen shot of some very simple stuff that returns undefined
This worked for me in windows:
node -e "require('repl').start({ignoreUndefined: true})"
This question already has answers here:
How can I make Node.js 'require' absolute? (instead of relative)
(39 answers)
Closed 8 years ago.
I'm creating an express 4 project and many of my files are nested within folders. Unfortunately I using a lot of :
var x = require('../../../../file');
I'm thinking I can avoid this if I have access to the base url of the project, but I'm seeing that using a global variable isn't a good idea. What's the best way to tackle this?
If you want directory of the root script from which the node process started, you can get it like this:
var root = require.main.filename.slice(0,require.main.filename.lastIndexOf('/'))
or, as #ChiChou suggested:
var root = require('path').dirname(require.main.filename)
This assumes that the main script (or any other script that requires your code) is run from the root directory.
You can use this root as your "base url".