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different behavior of process.argv


different behavior of process.argv

By : chim
Date : November 18 2020, 03:49 PM
it helps some times learnyounode run filename.js runs node filename.js {{fileToBeRead}} which is to say you need to give it a command line argument or process.argv[2] will be undefined which is causing fs.readFile(undefined, . . . to throw an error.
code :


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Get other process' argv in OS X using C

Get other process' argv in OS X using C


By : sqwerty
Date : March 29 2020, 07:55 AM
wish helps you In 10.6, KERN_PROCARGS2 is available: https://gist.github.com/770696
This way is used from ps, procfs on MacFUSE, etc.
Node.js: process.argv vs. process.ARGV

Node.js: process.argv vs. process.ARGV


By : user3011659
Date : March 29 2020, 07:55 AM
With these it helps process.ARGV has been removed entirely since v0.5.10.
Mimic process.argv

Mimic process.argv


By : user2759307
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further You can parse a string in the same way bash does by using a shellwords port. There is a javascript version of ruby's shellwords module called shellwords on npm (https://github.com/jimmycuadra/shellwords).
npm install shellwords
code :
var shellwords = require('shellwords');
shellwords.split("foo 'bar baz'");
// ["foo", "bar baz"]
sys.argv behavior with python -m

sys.argv behavior with python -m


By : Abdulqadir Awan
Date : March 29 2020, 07:55 AM
Does that help Short Version: there is no way to find __main__ before it is run
Long Version:
argc, argv causes strange behavior in Null terminator in C

argc, argv causes strange behavior in Null terminator in C


By : Dian
Date : March 29 2020, 07:55 AM
should help you out string a[] = {"1","2"} is a 2-element array. There will be no hidden NULL-pointer appended to it. Accessing a[2] (the would-be 3-rd element of it) renders your program undefined. There's not much of a point in analyzing how different variables affect a program whose behavior is undefined. It can vary from compiler to compiler.
code :
#include <stdio.h>
int main(void)
{
    //arrays of char initialized with a string literal end with '\0' because
    //the string literal does
    char const s0[] = "12";
#define NELEMS(Array) (sizeof(Array)/sizeof(*(Array)))
    printf("%zd\n", NELEMS(s0)); //prints 3

    //explicitly initialized char arrays don't silently append anything
    char const s1[] = {'1','2'};
    printf("%zd\n", NELEMS(s1)); //prints 2


    //and neither do array initializations for any other type
    char const* a[] = {"1","2"};
    printf("%zd\n", NELEMS(a)); //prints 2
}
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