Currently, I am receiving an arrayBuffer from a WebSocket connection and within that, I am able to obtain a range of byte arrays representing a Guid created in C#.
I am wondering how I can convert these Guid bytes to a string in JavaScript?
Guid: "FEF38A56-67A9-46DF-B7D8-C52191CD70F4"
Bytes: [86, 138, 243, 254, 169, 103, 223, 70, 183, 216, 197, 33, 145, 205, 112, 244]
Any assistance on this matter would be greatly appreciated. Thank you.
Aside from JohanShogun's response, a straightforward script can be used to achieve the desired outcome by utilizing the map function on an array of bytes. It is important to note that based on the Remarks section mentioned in http://msdn.microsoft.com/pl-pl/library/system.guid.tobytearray.aspx, the first four bytes need to be reversed, followed by the next two and then two more after them. Additionally, ensure there is zero-padding for resulting values (e.g., 15 should be represented as "0F" not just "F"):
var x = [168, 199, 56, 91, 146, 52, 231, 64, 175, 133, 167, 15, 146, 60, 83, 107];
// Reverse the first four bytes and concatenate with the following two reversed, followed by another two reversed, and finally joined with the rest of the bytes
x = x.slice(0, 4).reverse().concat(x.slice(4,6).reverse()).concat(x.slice(6,8).reverse()).concat(x.slice(8))
var guid = x.map(function(item) {
// Return hex value with "0" padding
return ('00'+item.toString(16).toUpperCase()).substr(-2,2);
})
// The guid variable now contains: 5B38C7A8349240E7AF85A70F923C536B
For testing purposes, refer to this example: http://jsbin.com/ogegut/4/edit
When working with Numbers (http://www.w3schools.com/jsref/jsref_obj_number.asp), converting them to hex is easy by using the .toString(16) method.
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