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• How to check undefined javascript value in facebook?

  - by Murvinlai

  In normal javascript, I can check either if (i == undefined) or if (i === undefined) or the "typeof" however, within facebook, it will have the api_key append as the prefix in undefined. i.e. it will become if (a12345_i == a12345_undefined) which is NOT undefined so, what can I do to find out the variable is undefined or not?

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• Spell check in winforms

  - by j-t-s

  In my win forms c# app, I want to be able to add spell check functionality. But, I want to do it my own way, and NOT use any other components. All I need is just an online service where i can send a request or something and it tells me whether or not the word i sent was spelled correctly. Preferred but not required: The ability for that online sevrice to also send back suggestions.

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• check params['Filedata'] in rails.

  - by krunal shah

  How to check that my params['Filedata'] is corrupted or not? I have function it's reading file from params['Filedata'] and writing it to the other file. File.open(upload_file, "wb") { |f| f.write(params['Filedata'].read) } this line working fine for me.. But when i am calling this function with delayed job funtion send_later than I am getting error with params['Filedata'].read.

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• ASP.Net check value with DBNULL

  - by c11ada

  hey all, i have the following code foreach (DataRowView dr in Data) { if (dr == System.DBNull.Value) { nedID = 1; } } but i get the following error Operator '==' cannot be applied to operands of type 'System.Data.DataRowView' and 'System.DBNull' please can some one advice me on how i can check if the value is null or DBNULL

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• Need to check uptime on a large file being hosted

  - by trustfundbaby

  I have a dynamically generated rss feed that is about 150M in size (don't ask) The problem is that it keeps crapping out sporadically and there is no way to monitor it without downloading the entire feed to get a 200 status. Pingdom times out on it and returns a 'down' error. So my question is, how do I check that this thing is up and running

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• check max characters in textbox

  - by saadan

  I have textboxes where i only want signed a max number of characters in. an then I'll hear how i could check it easily in c#

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• How to check permissions to functions under psql console

  - by MiB

  Could you tell me please how to check permissions to functions with psql console but without being overwhelmed with source code and descirption (like when using \df+).

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• how can we check filetypes (formats such as jpg) without using file extensions before _-uploading t

  - by LostLord

  hi my dear friends: how can we check filetypes (formats such as jpg) without using file extensions before -uploading them- in asp.net with c# ? i am using vs 2008 + asp.net + c# + TELERIK Controls (RadUpload) ========================================================================================= imagine that some body change the text file extension to jpg and select in in a upload conrol such as radupload ... how can we recognize this file is truly jpg or not? thanks a lot

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• How can programmatically check wich version of the WMI is installed

  - by Salvador

  How can programmatically check wich version of the WMI (Windows Management Instrumentation) is installed using delphi or C# ? thanks in advance.

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• Check if access table exists

  - by HasanGursoy

  I want to log web site visits' IP, datetime, client and refferer data to access database but I'm planning to log every days log data in separate tables in example logs for 06.06.2010 will be logged in 2010_06_06 named table. When date is changed I'll create a table named 2010_06_07. But the problem is if this table is already created. Any suggestions how to check if table exists in Access?

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• VBA check if object is set

  - by LanguaFlash

  I have a global variable that is an instance of my custom class. How to I check if the object is set or if I need to initialize it? Thanks, Jeff

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• JavaScript check if anonymous object has a method

  - by Baddie

  How can I check if an anonymous object that was created as such: var myObj = { prop1: 'no', prop2: function () { return false; } } does indeed have a prop2 defined? prop2 will always be defined as a function, but for some objects it is not required and will not be defined. I tried what was suggested here: http://stackoverflow.com/questions/595766/how-to-determine-if-native-javascript-object-has-a-property-method but I don't think it works for anonymous objects .

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• BASH Script to Check if a number is Armstrong or Not

  - by atif089

  Hi, I was writing a script to check if a number is Armstrong or not. This is my Code echo "Enter Number" read num sum=0 item=$num while [ $item -ne 0 ] do rem='expr $item % 10' cube='expr $rem \* $rem \* $rem' sum='expr $sum + $cube' item='expr $item / 10' done if [ $sum -eq $num ] then echo "$num is an Amstrong Number" else echo "$num is not an Amstrong Number" fi After I run this script, $ ./arm.sh I always get this error ./arm.sh: line 5: [: too many arguments ./arm.sh: line 12: [: too many arguments I am on cygwin.

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• hot to check sphinx version?

  - by user285020

  I install a sphinx search engine a couple months ago, as time pass, I don't remember that sphinx version I installed. how to check my system sphinx version?

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• check if user accepted file download in javascript

  - by Andrew Chang

  How do I check if the user accepted a file download in javascript. Example: if the site pops up a download link, and the web browser asks the user to download the file, how do I determine on that page if the user accepted the download or not?

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• CHECK/NOCHECK for Sql Compact Edition

  - by Ryan H

  I am attempting to wipe and repopulate test data on SQL CE. I am getting an error due to FK constraints existing. Typically in Sql2005 I would ALTER TABLE [tablename] CHECK/NOCHECK CONSTRAINT ALL to enable/disable all constraints. From what I could find in my searching, it seems that this might not be supported in CE. Is that true? If so, is there an alternative?

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• Check SuspendLayout

  - by norlando02

  Is there a way in C# to check if an object is suspend? I have a TreeView that I need to know if it is still suspend. myTreeView.BeginUpdate(); myTreeView.SuspendLayout(); // Do Stuff. myTreeView.EndUpdate(); myTreeView.ResumeLayout(); Because i have this code in a recursive function I want to know if the TreeView is already been suspended.

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• Check for repeating dates.

  - by kylex

  I am creating a calendar in PHP and in the database have a date, let's say 6-10-10. Sometimes I have repeating events, stored as weekly repeating, so if the date is 6-10-10, and I am repeating an event every two weeks from that day (including that day) what is the best way to find dates for every two weeks from 6-10-10? For example, let's say the date is 7-8-10, how can I check to see that date meets my criteria?

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• Is there an easy way to check a fundamental type

  - by Dbger

  In < Modern C++ Design ,it introduces a way to check if a type fundamental type by introducing the so called type list. but what if I don't want to include so many loki code and just want a simple function to implement that? What is the simplest way to do that?

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• Check on null reference

  - by Neir0

  Hello, i have the follow code: searchResults.SearchResultCollection.Add( new SearchResult() { Header = HttpUtility.HtmlDecode( htmlDocument.DocumentNode .SelectSingleNode(initialXPath + "h3") .InnerText), Link = HttpUtility.HtmlDecode( htmlDocument.DocumentNode .SelectSingleNode(initialXPath + "div/cite") .InnerText) } ); Sometimes htmlDocument.DocumentNode.SelectSingleNode(....) returns null and my application crashed with NullReferenceException. Ofcourse i can write code which check returned value on null reference but then code will be overly verbose. What is graceful way to do that?

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• Check if I can execute some sql-command

  - by Alexander Stalt

  I'm using ADO .NET and MS SQL Server 2008. I have a connection object to a server and a command: SqlConnection conn = /* my connection*/; string cmd = "some_sql_command"; I want to check if SQL Server can execute cmd. I don't want to execute cmd, but I want to know If SQL Server can execute it. cmd can be any single SQL statement, it's not a procedure, transaction or multiple commands etc..

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• check if a sheet exists in excel

  - by ps

  How do i check if a sheet exists in a excel using interop. I tried the following but it throws an COMException if not there.. Is there a better way of finding out than actually looking at the exception Worksheet sheet = null; Sheets worksheets = some; sheet = (Worksheet)worksheets.get_Item("sheetName"); if(sheet!=null) { //do something }

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• Check for Nothing in vbscript/classic asp

  - by Joel Coehoorn

  I need to update an old classic asp, and I have to call a function that normally returns an array, but under certain circumstances might return either Nothing or an undefined value. How can I check that the result actually returns an array?

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• Check if stored proc exists in ADO.Net?

  - by HeavyWave

  How do I check that a stored procedure exists using ADO.Net? Is there a specific way to do this (apart from executing SELECT OBJECT_ID() and checking the result)?

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• How to sanity check a date in java

  - by Bloodboiler

  I find it curious that the most obvious way to create Date objects in Java has been deprecated and appears to have been "substituted" with not so obvious to use lenient calendar. So... How do you check that a date given as a combination of day, month and year is a valid date? For instance a date 2008-02-31 (as in yyyy-mm-dd) would be invalid date.

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