In new versions of node (6+) the `new Buffer()` interface is deprecated. Use:

    Buffer.from(&quot;250001000192CD0000002F6D6E742F72&quot;, &quot;hex&quot;)

instead.

Find more info on this using this link below
https://nodejs.org/api/buffer.html#buffer_static_method_buffer_from_string_encoding

    new Buffer(&quot;250001000192CD0000002F6D6E742F72&quot;, &quot;hex&quot;)

I have a view (Index.cshtml) with a submit button. When the submit button is clicked, it calls an action (Action01) within the controller (TestController.cs) so at the end of the action I want to return to the caller (Index.cshtml) view with a custom view model as a parameter. How do I do this?

Results after **first attempt** using View(&quot;ViewName&quot;,model):

An error is raised, as the action is within the controller Test, so returning, it is searching for \Views\Tests\Index, and my Index page is in \Views\Home\Index.

The view &#39;Index&#39; or its master was not found or no view engine supports the searched locations. The following locations were searched:

    ~/Views/Test/Index.aspx
    ~/Views/Test/Index.ascx
    ~/Views/Shared/Index.aspx
    ~/Views/Shared/Index.ascx
    ~/Views/Test/Index.cshtml
    ~/Views/Test/Index.vbhtml
    ~/Views/Shared/Index.cshtml
    ~/Views/Shared/Index.vbhtml

###Final solution:

I have used `return View(&quot;ViewName&quot;, model)`, and I have changed my directories structure as it was the problem.


Calling another different view from the controller using ASP.NET MVC 4

Hi I have searched various forums and here as well, I could find some answers for Linux and Mac but not able to find solution for Unix and specially Korn Shell.

How to get process name (command name) from process id (pid)

Below reference I found from SO 
[This one ][1]
[And this one also][2]

I tried below command

  [1]: https://stackoverflow.com/questions/4189717/get-process-name-by-pid
  [2]: https://stackoverflow.com/questions/15545341/process-name-from-its-pid-in-linux

    ps -eaf | awk &#39;{ print substr($0, index($0, $9)) }&#39;

Above command is failing at a point where TIME is given rather than Month and Date (because in this case there will be only 8 columns in string)

Any suggestion would help.

How to get pid given the process name

I want to send a raw buffer using bluetooth connection. The content is a hex number. Currently I split the number manually to an byte array. Is there any function that can help me convert the number to byte array?

    //var data = 0x250001000192CD0000002F6D6E742F72;
    var data = new Buffer([0x25,0x00,0x01,0x00,0x01,0x92,0xCD,0x00,0x00,0x00,0x2F,0x6D,0x6E,0x74,0x2F,0x72]);
    serialPort.write(data);


Node.js convert hexadecimal number to byteArray

I want to send a raw buffer using bluetooth connection. The content is a hex number. Currently I split the number manually to an byte array. Is there any function that can help me convert the number to byte array?
<pre><code class="hljs language-ini">//var data = 0x250001000192CD0000002F6D6E742F72;
var data = new Buffer([0x25,0x00,0x01,0x00,0x01,0x92,0xCD,0x00,0x00,0x00,0x2F,0x6D,0x6E,0x74,0x2F,0x72]);
serialPort.write(data);
</code></pre>

I am trying to [execute a child][1] process in a different directory then the one of its parent. 

    var exec = require(&#39;child_process&#39;).exec;
    
    exec(
    	&#39;pwd&#39;,
    	{
    		cdw: someDirectoryVariable
    	},
    	function(error, stdout, stderr) {
    		// ...
    	}
    );

I&#39;m doing the above (though of course running &quot;pwd&quot; is not what I want to do in the end). This will end up writing the pwd of the parent process to stdout, regardless of what value I provided to the cdw option.

What am I missing?

(I did make sure the path passed as cwd option actually exists)


  [1]: http://nodejs.org/api/child_process.html#child_process_child_process_exec_command_options_callback

NodeJs child_process working directory

How to change it from 5858 to 7000, for example?

How to change node.js debug port?

What are the naming conventions for files and folders in a large Node.js project?

Should I capitalize, camelCase, or under-score?

Ie. is this considered valid?

    project-name
        app
            controllers
                someThings.js
                users.js
            models
                    someThing.js
                    user.js
            views
                some-things
                    index.jade
                users
                    logIn.jade
                    signUp.jade
        ...

Node.js project naming conventions for files &amp; folders

I have a service called &quot;localhost:3000/returnStat&quot; that should take a file path as parameter. For example &#39;/BackupFolder/toto/tata/titi/myfile.txt&#39;.

How can I test this service on my browser?
How can I format this request using Express for instance?


    exports.returnStat = function(req, res) {

	var fs = require(&#39;fs&#39;);
	var neededstats = [];
	var p = __dirname + &#39;/&#39; + req.params.filepath;

	fs.stat(p, function(err, stats) {
		if (err) {
			throw err;
		}
		neededstats.push(stats.mtime);
		neededstats.push(stats.size);
		res.send(neededstats);
	});
    };

Node.js: get path from the request

I&#39;m running an instance of Debian on Amazon EC2 with Node.js installed. If I run the code below:

    http = require(&#39;http&#39;);
    
    http.createServer(function (request, response){
      response.writeHead(200, {&#39;Content-Type&#39;:&#39;text/plain&#39;});
      response.end(&#39;Hello World\n&#39;);
    }).listen(80);
    console.log(&quot;Running server at port 80&quot;);

I get the output below which tells me there&#39;s another process listening at port 80:

    Running server at port 80
    
    events.js:72
            throw er; // Unhandled &#39;error&#39; event
                  ^
    Error: listen EACCES
        at errnoException (net.js:901:11)
        at Server._listen2 (net.js:1020:19)
        at listen (net.js:1061:10)
        at Server.listen (net.js:1127:5)
        at Object.&lt;anonymous&gt; (/home/admin/nodetests/nodetest.js:6:4)
        at Module._compile (module.js:456:26)
        at Object.Module._extensions..js (module.js:474:10)
        at Module.load (module.js:356:32)
        at Function.Module._load (module.js:312:12)
        at Function.Module.runMain (module.js:497:10)

Now when I check to see if there&#39;s a process (as root in case anything is hidden) listening on port 80 using: 

    netstat -tupln

I get the below output, which tells me theres nothing listening at port 80: 

    Active Internet connections (only servers)
    Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
    tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      1667/sshd       
    tcp6       0      0 :::22                   :::*                    LISTEN      1667/sshd

I should note that the debian has port 80 open as an inbound rule if that makes a difference. 

My question is: What am I doing wrong? How come I can&#39;t identify the process listening to port 80? Why is it blocked in Debian? What steps should I take to get the code running correctly?   

Node.js app can&#39;t run on port 80 even though there&#39;s no other process blocking the port

I have a relatively small file (some hundreds of kilobytes) that I want to be in memory for direct access for the entire execution of the code.

I don&#39;t know exactly the internals of Node.js, so I&#39;m asking if a `fs open` is enough or I have to read all file and copy to a `Buffer`? 



Buffer entire file in memory with Node.js

I tried to copy text from IDEA with ideavim plugin, using default vim keybindings (**y**). But this text isn&#39;t copied in global buffer and i can paste it only in IDEA. &lt;br&gt;
How can I use copied piece of text in browser, for example?

Intellij IDEA with ideavim. Cannot copy text from another source

I have a JSON object and I&#39;m converting it to a `Buffer` and doing some process here. Later I want to convert the same buffer data to convert to valid JSON object.

I&#39;m working on Node V6.9.1

Below is the code I tried but I&#39;m getting `[object object]` when I convert back to JSON and cannot open this object.

    var obj = {
       key:&#39;value&#39;,
       key:&#39;value&#39;,
       key:&#39;value&#39;,
       key:&#39;value&#39;,
       key:&#39;value&#39;
    }

    var buf = new Buffer.from(obj.toString());

    console.log(&#39;Real Buffer &#39; + buf);  //This prints --&gt; Real Buffer &lt;Buffer 5b 6f 62 6a 65 63 74&gt;

    var temp = buf.toString();

    console.log(&#39;Buffer to String &#39; + buf);  //This prints --&gt; Buffer to String [object Object]

So I tried to print whole object using inspect way

    console.log(&#39;Full temp &#39; + require(&#39;util&#39;).inspect(buf, { depth: null }));  //This prints --&gt; &#39;[object object]&#39; [not printing the obj like declared above]

If i try to read it like an array

     console.log(buf[0]);  // This prints --&gt; [ 

I tried parsing also it throw `SyntaxError: Unexpected token o in JSON at position 2`


I need to view it as real object like I created (I mean like declared above).

Please help..



Content Type	Original Author	Original Content on Stackoverflow
Question	GingerJim	View Question on Stackoverflow
Solution 1 - node.js	Brad	View Answer on Stackoverflow
Solution 2 - node.js	SLaks	View Answer on Stackoverflow

Node.js convert hexadecimal number to byteArray

node.js Problem Overview

node.js Solutions

Solution 1 - node.js

Solution 2 - node.js

How to get pid given the process name

Calling another different view from the controller using ASP.NET MVC 4

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