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  • Jquery Bugs?? Long decimal number after two numbers multiply...

    - by Jerry
    Hi all I am working on a shopping site and I am trying to calculate the subtotal of products. I got my price from a array and quantity from getJSON response array. Two of them multiply comes to my subtotal. I can change the quantity and it will comes out different subtotal. However,when I change the quantity to certain number, the final subtotal is like 259.99999999994 or some long decimal number. I use console.log to check the $price and $qty. Both of them are in the correct format ex..299.99 and 6 quantity.I have no idea what happen. I would appreciate it if someone can help me about it. Here is my Jquery code. $(".price").each(function(index, price){ $price=$(this); //get the product id and the price shown on the page var id=$price.closest('tr').attr('id'); var indiPrice=$($price).html(); //take off $ indiPrice=indiPrice.substring(1) //make sure it is number format var aindiPrice=Number(indiPrice); //push into the array productIdPrice[id]=(aindiPrice); var url=update.php $.getJSON( url, {productId:tableId, //tableId is from the other jquery code which refers to qty:qty}, productId function(responseProduct){ $.each(responseProduct, function(productIndex, Qty){ //loop the return data if(productIdPrice[productIndex]){ //get the price from the previous array we create X Qty newSub=productIdPrice[productIndex]*Number(Qty); //productIdPrice[productIndex] are the price like 199.99 or 99.99 // Qty are Quantity like 9 or 10 or 3 sum+=newSub; newSub.toFixed(2); //try to solve the problem with toFixed but didn't work console.log("id: "+productIdPrice[productIndex]) console.log("Qty: "+Qty); console.log(newSub); **//newSub sometime become XXXX.96999999994** }; Thanks again!

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  • How well does Solr scale over large number of facet values?

    - by Continuation
    I'm using Solr and I want to facet over a field "group". Since "group" is created by users, potentially there can be a huge number of values for "group". Would Solr be able to handle a use case like this? Or is Solr not really appropriate for facet fields with a large number of values? I understand that I can set facet.limit to restrict the number of values returned for a facet field. Would this help in my case? Say there are 100,000 matching values for "group" in a search, if I set facet.limit to 50. would that speed up the query, or would the query still be slow because Solr still needs to process and sort through all the facet values and return the top 50 ones? Any tips on how to tune Solr for large number of facet values? Thanks.

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  • How to convert a video via ffmpeg to an mp4 format that will stream and/or download to iPhone and Bl

    - by Yegor
    I have a site where people upload videos, which are converted to .flv format. Simple. I wanted to also convert to an mp4 format that will "stream" to an iphone and blackberry, or allowed to be downloaded to either, for later viewing. Can someone post a working ffmpeg line to accomplish this task? Closest I got was this (which doesn't work) ffmpeg -i in.avi -f mp4 -vcodec libx264 -maxrate 1000 -qmin 3 -qmax 5 -bufsize 4096 -g 300 -acodec libfaac -s 480x320 -ab 128k -qscale 7 out.mp4

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  • How to provide metadata tags,keywords to Windows and fill properties page for a custom file format?

    - by Mode
    Hi, My application uses its own file format (compressed SQLite databases) to store user created data. 1) I would like to know how to provide keywords, tags to Windows so that Vista search function can include my file format when indexing. 2) I would like to provide a properties page like you see when you right click a Microsoft Word document and select properties. Kindly point me in the right direction. Thank you.

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  • ActionScript 3.0 Color Output Error?

    - by TheDarkIn1978
    I'm employing color in a current AS3 project, and have come across what appears to be an error in the Flash Player (version 10). it might also be an error with Apple's DigitalColor Meter (version 3.7.2), which is what i'm using to sample the displayed colors on Mac OS X Snow Leopard (version 10.6.3). //Primary, secondary, and tertiary colors of the RGB color wheel var red:Number = 0xFF0000; var orange:Number = 0xFF7D00; var yellow:Number = 0xFFFF00; var chartreuse:Number = 0x7DFF00; var green:Number = 0x00FF00; var spring:Number = 0x00FF7D; var cyan:Number = 0x00FFFF; var azure:Number = 0x007DFF; //reads 0x0077FF var blue:Number = 0x0000FF; var violet:Number = 0x7D00FF; var magenta:Number = 0xFF00FF; //reads 0xFF00F8 var rose:Number = 0xFF007D; //reads 0xFF0077 all of these colors display normally except for 3: Azure, Magenta and Rose. they are coded with the appropriate number, but when i use the color meter to sample the displayed colors, those 3 return inaccurate results. anyone have any insight about this issue? what is causing the error, the Flash runtime or the color sampler? if it's the Flash player, could this problem be much deeper? *sampling this image will return inaccurate results due to .jpg compression. it's simply for illustration

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  • Python: Best practice for including a version number in an app?

    - by Ben
    I have a PyQt application that reads and writes data files. I am including a 'version number' in each file written. This is a simple number similar to: 1.2 or something (major and minor versions). I am doing this so that I can change the format of these data files in future versions and then still correctly parse them simply by checking to see what the version is inside the file. My question is what is the best practice for keeping this number stored inside the app itself. I.e. do I just hard-code the app version number into the class that is responsible for reading and writing files? Or should I have some sort of object/variable stored at the top-level of the app and somehow access it from the class responsible for reading and writing these files. If the latter, how do I store it and how do I access it? Thanks.

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  • Get a number after a character in a string...

    - by James Rattray
    I'm making my own forums and I don't want any BB code on it, but instead my own, so i've gotten [b][u][img] working etc. But i'm having problems with [quote=1][/quote] where the number is the user id... E.G lets say I quote someone So once I submit my post: (The variable $post would be:) '[quote=1] Quoted post :P[/quote]' How would I then get the number out the string? (But not the wrong number -not a number in the quoted post) (So I could then use str_replace() to replace with a table which makes it looked quoted) ?? :)

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  • How to get a list of the latest revision number for each file in a Mercurial repository?

    - by Kimble
    I have made a build system for my web application that's rewriting all resource url's to include the file's revision number (to improve client caching). As of today I'm running this command for each file to get the revision number: hg log --template '{rev}\n' path-to-file Executing hg for each file is really time consuming. Is there a fast way to list all files in a repository with the latest revision number?

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  • Hibernate CreateSQL Query Problem

    - by Shaded
    Hello All I'm trying to use hibernates built in createsql function but it seems that it doesn't like the following query. List =hibernateSession.createSQLQuery("SELECT number, location FROM table WHERE other_number IN (SELECT f.number FROM table2 AS f JOIN table3 AS g on f.number = g.number WHERE g.other_number = " + var + ") ORDER BY number").addEntity(Table.class).list(); I have a feeling it's from the nested select statement, but I'm not sure. The inner select is used elsewhere in the code and it returns results fine. This is my mapping for the first table: <hibernate-mapping> <class name="org.efs.openreports.objects.Table" table="table"> <id name="id" column="other_number" type="java.lang.Integer"> <generator class="native"/> </id> <property name="number" column="number" not-null="true" unique="true"/> <property name="location" column="location" not-null="true" unique="true"/> </class> </hibernate-mapping> And the .java public class Table implements Serializable { private Integer id;//panel_facility private Integer number; private String location; public Table() { } public void setId(Integer id) { this.id = id; } public Integer getId() { return id; } public void setNumber(Integer number) { this.number = number; } public Integer number() { return number; } public String location() { return location; } public void setLocation(String location) { this.location = location; } } Any suggestions? Edit (Added mapping)

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  • oracle index for string column - does format of data affects quality of index?

    - by Jayan
    We have following type of "Unique ID" column for many tables in the database (Oracle). It is a string with following format <randomnumber>-<ascendingnumber>-<machinename> So we have some thing like this U1234-12345-NBBJD U1234-12346-NBBJD U1234-12347-NBBJD U1234-12348-NBBJD U1234-12349-NBBJD The UID value is unique, we have unique index on them. Does the following format is more efficient than above for index scans? NBBJD-U1234-12345 NBBJD-U1234-12346 NBBJD-U1234-12347 NBBJD-U1234-12348 NBBJD-U1234-12349

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  • How to get number of attributes in a java class?

    - by llm
    I have a java class containing all the columns of a database table as attributes (member variables) and corresponding getters and setters. I want to have a method in this class called getColumnCount() that returns the number of columns (i.e. the number of attributes in the class)? How would I implement this without hardcoding the number? I am open to critisims on this in general and suggestions. Thanks.

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  • php, js - echoing a number based on how many children there are?

    - by benbyford
    Creating a site in with FrogCMS and using alot of jquery to create an all in one screen site. having trouble in php echoing a number for the number of children for a subject in the database which i can then use as a var in js. some things ive tried, but im not really a developer so having issues here is some code frog supplies to show to utilise articles for example, and articles then has childen in the database. find('/articles/'); ? children(array('limit' = 1, 'order' = 'page.created_on DESC')); ? but im not sure how to create a discrete number to use with the jquery concerning the number of children?? thanks

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  • Can a real number "cover" all integers within its range?

    - by macias
    Is there a guarantee that a real number (float, double, etc) can "cover" all integers within its range? By cover I mean, that for every integer within its range there is such real number that this equality holds: real == int Or in another example, let's say I have the biggest real number which is smaller than given integer. When I add "epsilon" will I get this number equal to given integer or bigger than integer? (I know that among real numbers you should not write comparisons as == for equality, I am simply asking for better understanding subject, not for coding comparisons.)

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