2 Dimensional Array to JSON data in Javascript

Quick posting on how to convert 2 dimensional javascript array to JSON data. Source!

  
var questions = [];
 
 for(i=0;i<3;i++) {
    questions[i] = {};
    questions[i]["question"] = "hey";
    questions[i]["rating"] = "123";
 });


var encoded = JSON.stringify(questions);
console.log(encoded);

Take a look at the third code line! With this way, you send the second array dimension as array object. If you send this data with AJAX to a PHP code, you should put 'true' as the second argument on json_decode php function. It will convert the JSON data into a php array.

  
<?php

$myarray = json_decode(encoded, true);

?>

Get installed Windows Key without Any Sotware

I got the answer to get the windows key from howtogeek.com . On the page, there are several ways to get the installed windows key. I liked the way that does not require any software.

Here we go.

1. Open notepad and paste this code:
Set WshShell = CreateObject("WScript.Shell")
MsgBox ConvertToKey(WshShell.RegRead("HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\DigitalProductId"))
Function ConvertToKey(Key)
Const KeyOffset = 52
i = 28
Chars = "BCDFGHJKMPQRTVWXY2346789"
Do
Cur = 0
x = 14
Do
Cur = Cur * 256
Cur = Key(x + KeyOffset) + Cur
Key(x + KeyOffset) = (Cur \ 24) And 255
Cur = Cur Mod 24
x = x -1
Loop While x >= 0
i = i -1
KeyOutput = Mid(Chars, Cur + 1, 1) & KeyOutput
If (((29 - i) Mod 6) = 0) And (i <> -1) Then
i = i -1
KeyOutput = "-" & KeyOutput
End If
Loop While i >= 0
ConvertToKey = KeyOutput
End Function
2. save it as vbs file, for examples: save it as getKey.vbs
3. double click the file

pop up with the windows keys should be showed up

Unexpected end of json input in Node.js

Again, something that I have to keep in my blog.

I am developing a REST API, that decrypts an array of encrypted text. I post the array data in form of JSON data and nodejs keeps giving me an error "unexpected end of json input". But if I check the JSON data, everything looks fine.

stackoverflow saves my live again.

The explanation and the solution is shown in that link. Check the solution using "chunk"