A TypeScript GUID class

Question

Does anyone know of a good  solid  implementation of C  like GUID  UUID  in TypeScript   Could do it myself but figured I d spare my time if someone else done it before

User · Accepted Answer

There is an implementation in my TypeScript utilities based on JavaScript GUID generators.

Here is the code:

_x000D_

class Guid {_x000D_
  static newGuid() {_x000D_
    return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {_x000D_
      var r = Math.random() * 16 | 0,_x000D_
        v = c == 'x' ? r : (r & 0x3 | 0x8);_x000D_
      return v.toString(16);_x000D_
    });_x000D_
  }_x000D_
}_x000D_
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// Example of a bunch of GUIDs_x000D_
for (var i = 0; i < 100; i++) {_x000D_
  var id = Guid.newGuid();_x000D_
  console.log(id);_x000D_
}

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Please note the following:

C# GUIDs are guaranteed to be unique. This solution is very likely to be unique. There is a huge gap between "very likely" and "guaranteed" and you don't want to fall through this gap.

JavaScript-generated GUIDs are great to use as a temporary key that you use while waiting for a server to respond, but I wouldn't necessarily trust them as the primary key in a database. If you are going to rely on a JavaScript-generated GUID, I would be tempted to check a register each time a GUID is created to ensure you haven't got a duplicate (an issue that has come up in the Chrome browser in some cases).

User · Answer

I found this https   typescriptbcl codeplex com SourceControl latest  here is the Guid version they have in case the link does not work later   module System       export class Guid           constructor  public guid  string                this  guid   guid                     private  guid  string           public ToString    string               return this guid                        Static member         static MakeNew    Guid               var result  string              var i  string              var j  number               result                   for  j   0  j  lt  32  j                      if  j    8    j    12    j    16    j    20                      result   result    -                   i   Math floor Math random     16  toString 16  toUpperCase                    result   result   i                            return new Guid result

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