Browse by Tags

• COM VariantClear Security
• for in loop
• JScript
• JScript Exceptions IE frame
• Jscript VBarrays safearrays

• valueOf and toString

  My colleague SDET Titus Chandramohan sent me a mail and reported a inconsistent bahavior in JScript. The issue he reported was... var f = function(){ return 5;}; var num = new Number(5); num.x = f.valueOf; num.x(); ------> this should return 5 and Read More... Posted Wednesday, March 28, 2007 3:42 PM by Jaiprakash | 0 Comments

• A tip for improving perf with JScript...

  Most of you must be knowing this but still i find it useful to share... " If you are calling a dom method again and again in your website then it is a good idea to cache it to improve performance ." For example, let's say you are calling a method window.X1.X2.CallFoo() Read More... Posted Tuesday, January 23, 2007 6:28 AM by Jaiprakash | 0 Comments

• JScript exceptions not handled/thrown across frames if thrown from a expando method.

  Hope all of you are doing great! Today I am going to discuss sort of limitation of Jscript engine which I had hard time debugging. I hope through this post i can save you guys from running into same issue. Scenario - Let’s say Foo() is defined in one Read More... Posted Monday, January 22, 2007 11:17 AM by Jaiprakash | 0 Comments Filed under: JScript Exceptions IE frame

• Calling VariantClear on a OUT param can lead to security hole !!!

  There was a mail thread going on internally where a security hole was suspected due to VarianltClear() being called inside a method on a out param. Since i am new to COM world, I asked my fellow MSFTian Paul Dempsey that how can it be possible. Here is Read More... Posted Monday, January 15, 2007 7:30 PM by Jaiprakash | 1 Comments Filed under: COM VariantClear Security

• JScript supports SafeArrays of Variants only!!!

  Recently I investigated a bug in Jscript which was reported on Vista. The scenario was working perfectly fine on XP and win2k3 but regressed in Vista. Here is the repro code... var strSCID = "{305CA226-D286-468e-B848-2B2E8E697B74} 2"; var shell = new Read More... Posted Tuesday, January 09, 2007 6:00 PM by Jaiprakash | 1 Comments Filed under: Jscript VBarrays safearrays

• For In Loop in JScript

  Hi, It's been more than one year since my last post. I will try to be regular now on :). BTW, during this period, I have moved to Jscript team and will be sharing my little knowledge on JScript with you all. Recently I investigated a bug wherein user Read More... Posted Thursday, December 28, 2006 6:20 AM by Jaiprakash | 0 Comments Filed under: for in loop, JScript

• J#/C#/VB Express SKU prevent use of MS Word - Issue made us work hard

  Hi all, Last week one J# user (Mike Ward of Eurostep) reported that after installing J# express from this link he was not able to work on any Office tools at all. He could install and work on J# express successfully but as soon as he tried to open Word Read More... Posted Friday, November 18, 2005 8:11 PM by Jaiprakash | 0 Comments

• Bean Style properties in J#

  Bean style properties in J#. Difference between bean properties and .net properties. Consuming bean style properties. Read More... Posted Thursday, October 27, 2005 12:38 PM by Jaiprakash | 2 Comments

• Writing Indexers in J#...

  Indexers in J#. How to consume J# properties in C# as indexers. Read More... Posted Thursday, October 27, 2005 9:24 AM by Jaiprakash | 0 Comments

• Properties in J#...

  Writing properties in J#. Differences from C#. Read More... Posted Tuesday, October 25, 2005 11:16 AM by Jaiprakash | 0 Comments

• BadImageFormatException for a J# assembly on 64 Bit machine.

  Hi, Today I would like to write about something which left me clueless for hours and really made me work hard to figure the root cause. I was building and running a suite on a 64 bit machine. This suite was written in C# and referring few existing dlls Read More... Posted Thursday, October 06, 2005 6:17 AM by Jaiprakash | 2 Comments

• Here I come...

  Hi Friends, This is Jaiprakash, working as SDET in Visual J# team for the last few years. During this stint with J# I have learnt quite a lot interesting things about different aspects of product development, about .net, about J# and had some real cool Read More... Posted Thursday, September 29, 2005 3:12 PM by Jaiprakash | 0 Comments Filed under: JScript