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• How to get the number of days of difference between two dates on mysql?

  - by Audel

  I need to get the number of days contained within a couple of dates on mysql. For example: Check in date 12-04-2010 Check out date 15-04-2010 and the day difference would be 3 I hope that was clear Thanks

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• how to show the number of characters left in a multiline textbox in asp.net ?

  - by HotTester

  I have a multiline textbox which can contain only 500 characters. Now i want to show the user the number of characters left as they are typing into the textbox as is the case when we use twitter. Kindly help

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• Where is this port number http://localhost:52432/ specified when running an ASP.NET MVC app?

  - by Dr Dork

  I'm playing around with ASP.NET MVC and I just loaded up an empty project and ran it and the URL in my browser is http://localhost:52432/. Where is the 52432 port number specified? Thanks in advance for your help, I'm going to start researching this question right now.

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• How to arrange an array in decreasing order of frequency of each number?

  - by Rajendra

  Input : {5, 13, 6, 5, 13, 7, 8, 6, 5} Output : {5, 5, 5, 13, 13, 6, 6, 7, 8} The question is to arrange the numbers in the array in decreasing order of their frequency, preserving the order of their occurrence. If there is a tie, like in this example between 13 and 6, then the number occurring first in the input array would come first in the output array.

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• Berkeley DB replication: upper limit on number of replicants?

  - by Mark Harrison

  I'm considering using Berkeley DB to cache some data on an application cluster. What's a reasonable upper limit on the number of nodes I can plan on Berkeley DB handling? Writing to the database will be from a single node.

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• How to limit the number of dropdown items visible at a time on screen in AutoCompleteTextView ?

  - by mob-king

  I am using AutoCompleteTextView and want to limit the number of dropdown items visible at a time on screen. Currently it fills up the screen but can i limit it to say 2 items with a scroll bar for displaying more.

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• Regular expression for getting any letter, symbol, number from 1 to 100 maxlength.

  - by rolando

  As you can read in the tittle i need a regular expression for getting any letter, symbol, number from 1 to 100 maxlength (any text posible). Can someone provide that for me and maybe a good link to understand how it works. Thank you.

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• search text file using c# and display the line number and the complete line that contains the search

  - by Chitresh

  Hi, I require help to search a text file (log file) using c# and display the line number and the complete line that contains the search keyword.

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• javascript: how do I get the number of an item in an array?

  - by jesse

  var fruits = [ 'apple', 'banana', 'orange' ]; how do I find what number the value "banana" is? (which, of course, is "1"). thanks

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• Is there any inflector like library that can return a word based on a number?

  - by stacker

  I'm using inflector Pluralize and Singularize functions. I want to know if there is a ready library that know to decide if a word needs to be Pluralize or Singularize based on a number. Like: 0 articles 1 article 2 articles

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• How to retrieve a phone number for a gprs request in a j2me application?

  - by hector

  I am creating an j2me application in which for activation user sends a GPRS request request. Can we get the user pnohe number with his GPRS request?

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• How to arrange array in decreasing order of frequency of each number?

  - by Rajendra

  Input : {5, 13, 6, 5, 13, 7, 8, 6, 5} Output : {5, 5, 5, 13, 13, 6, 6, 7, 8} Question is to arrange the numbers in the array in decreasing order of their frequency preserving the order of their occurrence. If their is a tie, for example, here 13 and 6 then the number occurring first in input array would come first in output array.

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• How do I tag files in a directory in a SVN repository with a global version number that will appear

  - by mithaldu

  I am working on a project that stores multiple versions in the same svn repo but in different directories. For ease of reference for the coders working on the project I'd like to be able to add a commented tag similarly to # $Revision: 144 $ However, instead of the file revision it should contain a simple version number like so: # $Version: 1.63 $ # $Version: 1.64 $ # $Version: 2.0 $ Is there a way to get subversion to do this automatically for a specific directory and all sub-directories as well as for any new files added to those?

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• What is a magic number, and why is it bad?

  - by Adam Davis

  What is a magic number? Why should it be avoided? Are there cases where it's appropriate?

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• I need to randomize a number between two hex numbers, represented as strings.

  - by eriks

  ...and return the number as string. How can I do that? Is there any library for that?

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• Do you know of a log4net appender which rolls on date, but let's you limit the total number of files

  - by Michal Drozdowicz

  Hi, I need to define an appender for log4net in a way that I get one log file for each day, but the total number of files are limited to, let's say, 30. That is I want to keep only the logs not older then 30 days, delete the older ones. I've tried doing it with RollingFileAppender, but it seems that specifying a limit of files to keep is not supported. Do you know of an alternative solution that I could use?

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• How to reverse a number as an integer and not as a string?

  - by Pritam

  I came across a question "How can one reverse a number as an integer and not as a string?" Could anyone please help me to find out the answer.

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• Is het possible to read the iPhone phone number out of the settings?

  - by Chrizzz

  Hi, I would like to pre-populate a UITextfield with the phone number of the current iPhone device. Can that be done? regards, Christian

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• What's the maximum number of operators you that can be used in an if statement?

  - by DMinGod

  Hi, i'm using jquery and I'm trying to validate a form. My question is - What is the maximum number of tests can you give in a single if statement. function cc_validate () { if ($("#name").val() == "" || $("#ship_name").val() == "" || $("#address").val() == "" || $("#city").val() == "" || $("#ship_city").val() == "" || $("#state").val() == "" || $("#ship_state").val() == "" || $("#postal_code").val() == "" || isNaN($("#postal_code").val()) || $("#phone").val() == "" || $("#ship_phone").val() == "" || isNaN($("#phone").val()) || isNaN($("#ship_phone").val()) || $("#mobile_number").val() == "" || $("#ship_mobile_number").val() == "" || isNaN($("#mobile_number").val()) || isNaN($("#ship_mobile_number").val()) || $("#email").val() == "") { return false; } else { return true; } }

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• Do the speed of the query depends on the number of rows in the table ?

  - by Omu

  let's say I have this query: select * from table1 r where r.x = 5 do the speed of this query depends on the number of rows that are present in table1 ?

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• How to efficiently count the number of keys/properties of an object in JavaScript?

  - by mjs

  What's the fastest way to count the number of keys/properties of an object? It it possible to do this without iterating over the object? i.e. without doing var count = 0; for (k in myobj) if (myobj.hasOwnProperty(k)) count++; Firefox provides a magic __count__ property, but this isn't available in other implementations.

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• Is HTTP 404 appropriate for out of range page number on paged content?

  - by WooYek

  I have a site that is mainly showing a paged list of content (articles, data element's, etc.), and I'm wondering about returning HTTP 404 when user navigates outside of the available list range. Some sites just display "No results/Page number out of range" and some return additionally return HTTP 404 status. What's your take on that, and why? UPDATE It's not and api response. This question is in regard to user viewed pages that among other things show a list/table in the main area.

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• How to count the number of right children in a binary tree?

  - by flopex

  How to count the number of right children in a binary tree? This means that I only want the children marked as right. Ex. (Left | Right) F(Root) G | H T U | I J The right children would be U,H,and J. What would be the algorithm to find these.

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• [R] How to create a data.frame with a unknow number of columns ?

  - by Olivier

  Hello I would like to create, in a function, a boucle to create a data.frame with a variable number of columns. WIth something like : a = c("a","b") b = c(list(1,2,3), list(4,5,6)) data.frame(a,b) I would like to get a data-frame like : a 1 2 3 b 4 5 6 Instead of I obtain : a 1 2 3 4 5 6 b 1 2 3 4 5 6 Thank you ! PS : I also try with rbind, but it's doesn't work...

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• UI design for screen which has number of data entry textFields.

  - by shilpa

  Hi all, my app is an e-commerce application. During the checkout process, I have "recipient" and "credit card" screens. In the recipient screen, there are number of fields for address entry, which makes it very clumsy. Same in the case of the credit card screen, where the user is asked to enter their credit card info and billing address. Can anyone suggest how to design these two pages?

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