Please excuse my limited K6/Javascript knowledge.
I have been given a javascript file that can be used to create a batch of users to be used within my k6 load test.
The script is currently ran from the commmand line using this command:
node helpers/createUsers.js 10
I want to run this script in the 'setup' function in K6.
Can I run node commands directly in K6 as above, or do I have to turn it into an export function and then call it?
To my knowledge, you cannot run nodeJS or any nodeJS modules directly from a k6 test script. If the script helpers/createUsers.js is using any node modules, then you should follow this. and have the script in the setup() function.
Related
I am trying to find a solution of how to execute a JavaScript file a couple of times a day (Like Task Scheduler on Windows)
At the moment, I execute the file in VS Code or Command Prompt using node file.js.
Is there any way to automatically execute it?
I have tried the following with Task Scheduler, but is not executing the file, just opening VS Code:
Action: Start a program
Program/script: "C:\Users\AppData\Local\Programs\Microsoft VS Code\Code.exe"
Arguments: -l -i -c "C:\Users\desktop\folder_containing_the_file; node writeToFile.js"
It can't be executed when the computer is off. But you could use the Amazon AWS Free-Tier services to schedule and run it.
I need to run javascript code using node.js from C++ application, but I don't want to save code to file before. Is it anyway possible to forward code to node.exe directly, without temporary save it to file?
yes it is. You can use the --eval flag to run code:
node --eval "console.log('hello world');"
Well you can launch node.js and then stuff the script on stdin. How to do that exactly depends on your platform.
For details google how to fork process and get it's stdin with your platform and libraries.
I have a simple JavaScript myScript.js with code as below;
var printer = function(someString){
console.log(someString);
}
printer("This is printed on console.");
I'm on Windows 10 and need to be able to call myScript.js on a command prompt and have the code executed without doing node myScript.js. Is there a way to set up things so that Command prompt or PowerShell can automatically call Nodejs or other JavaScript engine?
If your Windows can run normal shell scripts on the command line then you can add a shebang line to your Node script just like you do with shell scripts. For example:
#!/usr/bin/env node
// your node code here
Also you can try to configure Node to be invoked for all files with the .js extension but this can be a security hazard because you may execute arbitrary code just by clocking on JavaScript files that you may have downloaded on your system so I wouldn't really recommend that.
Another alternative is to make a BAT script for you Node app:
example.bat:
node example.js
example.js:
// your Node script
That you will be able to run with just:
example
on your command line.
I have installed mean stack manager, but when I run command using node terminal console.log("Hello World") it works fine, but whenever I put Javascript sample file to any folder or anywhere in the mean stack install directory or install modules every it don't console the file, so I need your suggestions to where I have to put the Javascript file in mean stack manager to console the file.
Bitnami MEAN STACK MANAGER
Bitnami developer here.
The easiest way to play with node is using its interactive shell. Go to your installdir (in your case D:\New Programmes\New Server), double click on use_meanstack and execute:
$ node
Then, you should see > indicating that node is waiting for instructions.
You can also write all the instructions in a file with js extension (sample.js) execute it directly using:
$ node sample.js
You can place this file anywhere you want. By default, Meant Stack working directory is installdir, so you can place you file into D:\New Programmes\New Server to test it directly writing $ node sample.js. However, I think it would be a good pratice to place it under nodejs folder (in your case D:\New Programmes\New Server\nodejs). If you put sample.js there, you should execute
$ node nodejs\sample.js
I hope it helps
How can I run shell command in javascript in code behind
I have this exe file on:
C:\Program Files\test.exe
that i want to run using javascript and I want to do it in codebehind or at least call this function from code behind.
The reason want to do it on code behind is that I have parameters need to pass them in the shell command.
For security reasons you can not run commands from JavaScript.
If you are using JScript, then
var shell = WScript.CreateObject("WScript.Shell");
shell.Run("command here");