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  • Is String.concat slower than Array approach to join strings

    - by Rajat
    Strings in JavaScript are immutable. Across the web and here on Stack Overflow as well, I came across the Array approach to concatenate strings: var a = []; a.push(arg1,arg,2....); console.log(a.join('')); I know that this approach is better than the simple console.log(arg1 + arg2 +.....); for reasons of skipping creating intermediate objects but how does it fair better against : arg1.concat(arg2,arg3.....);

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  • How to add a suffix at the end of a string in PHP

    - by Golem
    I am trying to add a .html suffix at the end of all strings supplied by the user before it is entered into the database. Here's my code so far: strtolower(str_replace(" ", "_", $postTitle)); The above takes the title of the post the user it trying to make, turns it to lower case, replaces all white spaces with underscores and makes it ready to be entered into a database column called post_url. I just need it to do one more thing and that's to add a .html at the end of each post url. What is the function to do this?

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  • using javascript replace() to match the last occurance of a string

    - by Dave
    I'm building an 'add new row' function for product variations, and I'm struggling with the regex required to match the form attribute keys. So, I'm basically cloning rows, then incrementing the keys, like this (coffeescript): newrow = oldrow.find('select, input, textarea').each -> this.name = this.name.replace(/\[(\d+)\]/, (str, p1) -> "[" + (parseInt(p1, 10) + 1) + "]" ) this.id = this.id.replace(/\_(\d+)\_/, (str, p1) -> "_" + (parseInt(p1, 10) + 1) + "_" ) .end() This correctly increments a field with a name of product[variations][1][name], turning it into product[variations][2][name] BUT Each variation can have multiple options (eg, color can be red, blue, green), so I need to be able turn this product[variations][1][options][2][name] into product[variations][1][options][3][name], leaving the variation key alone. What regex do I need to match only the last occurrence of a key (the options key)?

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  • Php string handling tricks

    - by Dam
    Hi my question Need to get the 10 word before and 10 words after for the given text . i mean need to start the 10 words before the keyword and end with 10 word after the key word. Given text : "Twenty-three" The main trick : content having some html tags etc .. tags need to keep that tag with this content only . need to display the words from 10before - 10after content is bellow : removed Thank you

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  • Lotus view column compare to string/integer

    - by Kris.Mitchell
    I have a lotus view that stores a number. I need to perform some math against the value, but I am having a lot of problems getting the types to match up. doc.numOfGold = numGold and CInt(doc.numOfGold) = numGold and CInt(doc.numOfGold) = CInt(numGold) and doc.numOfGold = CInt(numGold) all return type mismatch. I've tried changing the column properties to treat it as a decimal, with no better luck. Any thoughts? Thanks!

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  • How to efficiently resize an array of values, without boxing, used within a Dictionary<string, float[]>

    - by makerofthings7
    In the code below, Pages is defined as public SortedDictionary<DateTime, float[]> Pages { get; set; } I am trying to dynamically increase the size of this array. Can anyone tell how to increase the sized of the innermost float[]? var tt = currentContainer.Pages[dateTime]; Array.Resize<float>(ref tt, currentContainer.Pages.Count + 1); Fail 1 I tried the following code and get index out of range exception SortedDictionary<DateTime, float[]> Pages = new SortedDictionary<DateTime,float[]>(); float[] xx = new float[1]; xx[0] = 1; DateTime tempTime = DateTime.UtcNow; Pages.Add(tempTime, xx); var tt = Pages[tempTime]; Array.Resize<float>(ref tt, Pages.Count + 1); Pages[tempTime][1] = 2; Fail 2 The following gives a compile time error (property, index, or dynamic member can't be used as a ref value) SortedDictionary<DateTime, float[]> Pages = new SortedDictionary<DateTime,float[]>(); float[] xx = new float[1]; xx[0] = 1; DateTime tempTime = DateTime.UtcNow; Pages.Add(tempTime, xx); var tt = Pages[tempTime]; // The line below is different from Fail 1 above ... compile time error Array.Resize<float>(ref Pages[tempTime], Pages.Count + 1); Pages[tempTime][1] = 2; Question What is the most performant answer to resize this array? Would the answer change if it's likely that the final size will be 100-200 floats or 700-900 floats? What if I change my allocation size from +1 to +128? .. or larger?

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  • NSMutableArray does not print well with several lines of string

    - by ahmet732
    while(sqlite3_step(compiledStatement) == SQLITE_ROW) { NSString *araci2 = [NSString stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement, 2)]; [dbarray addObject:araci2]; NSLog(@"DB ITEMS: %@",dbarray); } First of all, I try to get a description longer than a line from db. While part of the value appears meaningful, some of the characters of those values are absurd like "00fu". How can I print them in proper fashion ?

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  • Query filter design for string field

    - by Midhat
    A field in my table can have arbitrary strings. On the UI, there is a drop down having options like All, Value1, Value2 And the results were filtered by the selected option value. So far this is easy and adding new filters to the UI is not a problem. Needs no changes in my stored procedure. Now I want to have an "Others" option here as well, which will return rows not having the column value as Value1 or Value2. Apparently this will require a "not in" operator in my query, and will make maintenance difficult, as the list of values is likely to change Any suggestions, design tips?

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  • Convert a complicated string into an array in php

    - by Patrick Beardmore
    I have a php variable that comes from a form that needs tidying up. I hope you can help. The variable contains a list of items (possibly two or three word items with a space in between words). I want to convert it to a comma separated list with no superfluous white space. I want the divisions to fall only at commas, semi-colons or new-lines. Blank cannot be an item. Here's a comprehensive example (with a deliberately messy input): Variable In: "dog, cat ,car,tea pot,, ,,, ;;(++NEW LINE++)fly, cake" Variable Out "dog,cat,car,tea pot,fly,cake" Can anyone help?

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  • Need help regarding query string in asp.net

    - by vaibhav
    I have a page create-quote.aspx. I want to open this page in different modes, depending on whether a querystring parameter is present or not. My question is at which event should I check, If I have a querystring parameter or not. I think, it should be preinit, what do you say.

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  • Split string with delimiter in sql server

    - by Renju
    I'm having a coloumn name with varchar field that holds some folder path like "C:\Program Files\Internet Explorer\en-US" .I need to update the root folder name(Program files to profilesNew).Can anyone please help. I tried with a query declare @val as varchar(100) set @val='C:\Program Files\Internet Explorer\en-US' select substring(@val,charindex(':\',@val),charindex('\',@val)) but not getting the exact answer C:\Program FilesNew\Internet Explorer\en-US

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  • Cannot use String.Empty as a default value for an optional parameter in C# - then what's the point?

    - by Mikeyg36
    I am reading Effective C# by Bill Wagner. In Item 14 - Minimize Duplicate Initialization Logic, he shows the following example of using the new optional parameters feature in a constructor: public MyClass(int initialCount = 0, string name = "") Notice that he used "" instead of string.Empty. He comments: You'll note [in an example above] that the second constructor specified "" for the default value on the name parameter, rather than the more customary string.Empty. That's because string.Empty is not a compile-time constant. It is a static property defined in the string class. Because it is not a compile constant, you cannot use it for the default value for a parameter. If we cannot use the string.Empty static in all situations, then doesn't that defeat the purpose of it? I thought that we would use it to be sure that we have a system-independent means of referring to the empty string. Is my understanding wrong? Thanks.

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  • List files that don't match a string in bash

    - by Javier
    Dear all, I'm a newbie in bash and I would like to pass as parameter to a python function all files in a directory that don't match a given pattern. sth. like: $myscripts/myprog.py $myfiles/!(bonjovi) The above example should retrieve all files that don't match to "bonjovi". Best wishes

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  • Passing a string when starting a class in PHP

    - by Francesc
    Hi. First I have to say: Happy Christmas to All! I'm starting learning classes in PHP. I coded that: class User { function getFbId($authtoken) { } function getFbFirstName ($authtoken) { } } What I want to do is something like that: $user=new User($authtoken); And pass the $authtoken to the class. It's possible to define that when starting the class. It's possible to retrive that value inside a function of that class?

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  • PHP explode and set to empty string the missing pieces

    - by Marco Demaio
    What's the best way to accomplish the following. I have strings in this format: $s1 = "name1|type1"; //(pipe is the separator) $s2 = "name2|type2"; $s3 = "name3"; //(in some of them type can be missing) Let's assume namen/typen are strings and they can not contain a pipe. Since I need to exctract the name/type separetly, I do: $temp = explode($s1, '|'); $name = $temp[0]; $type = ( isset($temp[1]) ? $temp[1] : '' ); Is there an easier (smarter whatever faster) way to do this without having to do isset($temp[1]) or count($temp). Thanks!

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  • i need to use string virble in the Proc in sql server database 2005

    - by bassam
    i have this Proc CREATE Proc [dbo].Salse_Ditail -- Add the parameters for the stored procedure here @Report_Form varchar(1) , @DateFrom datetime , @DateTo datetime , @COMPANYID varchar(3), @All varchar(1) , @All1 varchar(1) , @All2 varchar(1) , @All3 varchar(1) , @All4 varchar(1) , @All5 varchar(1) , @Sector varchar(10), @Report_Parameter nvarchar(max) as BEGIN -- SET NOCOUNT ON added to prevent extra result sets from -- interfering with SELECT statements. DECLARE @STRWhere nvarchar(max) IF @All5=0 AND @All4=0 AND @All3=0 AND @All2=0 AND @All1=0 and @All=1 set @STRWhere= N'and Sector_id = @Sector' if @Report_Form =1 or @Report_Form =3 or @Report_Form =4 SELECT RETURNREASONCODEID, SITE,SITE_NAME,Factory_id,Factory_Name,Sector_id,sector_name,Customer_name, Customer_id,ITEMID,ITEMNAME,SALESMANID,SALESMAN_NAME,Net_Qty,Net_Salse,Gross_Sales,Gross_Qty, NETWEIGHT_Gross,NETWEIGHT_salse_Gross,NETWEIGHT_NET,NETWEIGHT_salse_NET,Return_Sales,Free_Good, CollectionAmount FROM hal_bas_new_rep WHERE DATAAREAID =@COMPANYID AND INVOICEDATE >= @DateFrom AND INVOICEDATE <= @DateTo and Report_Activti = @Report_Form if @Report_Form =2 SELECT RETURNREASONCODEID , RETURNREASONDESC, SITE , SITE_NAME , Factory_id , Factory_Name , Sector_id , sector_name , Customer_name , Customer_id , ITEMID , ITEMNAME , SALESMANID , SALESMAN_NAME , Return_Sales FROM dbo.hal_bas_new_rep WHERE DATAAREAID =@COMPANYID AND INVOICEDATE >= @DateFrom AND INVOICEDATE <= @DateTo and Report_Activti = @Report_Form and RETURNREASONCODEID in ( SELECT Val FROM dbo.fn_String_To_Table(@Report_Parameter,',',1) ) /* @STRWhere question how i can but the virble here */ end GO i want to but virble put a variable under where Expression and from this function buc I have many function i want to add if any one have answer pls send me

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