variable scope - Page 13

PHP - Variable inside variable?

- by RC

Hey guys... $bookA = "123"; $crack = "A"; I want to do something similar to this: echo $book$crack; Such that the output is 123. What is the correct syntax for the echo command? Thanks.

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Is it possible to run an ng-switch directly on a select > option

- by Asok

Has anyone been able to run an ng-switch on a <select> -> <option> tag, like so?: <select ng-model="form.permitLocality" ng-switch on="localityTypeRadio"> <option ng-switch-when="County" ng-repeat="county in countyList"> {{ county.name }} </option> <option ng-switch-when="City" ng-repeat="city in cityList"> {{ city.name }} </option> <option ng-switch-when="Town" ng-repeat="town in townList"> {{ town.name }} </option> </select> I am not getting any errors or any options (all values verified), I just thought it would save me a couple lines and thought I'd try it. Here is my selector, in case you're curious (value verified): <label class="radio inline"> <input type="radio" name="localityTypeRadio" ng-model="localityTypeRadio" value="County"> County </label> <label class="radio inline"> <input type="radio" name="localityTypeRadio" ng-model="localityTypeRadio" value="City"> City </label> <label class="radio inline"> <input type="radio" name="localityTypeRadio" ng-model="localityTypeRadio" value="Town"> Town </label> This is not a big deal, just didn't know if this was a limitation / not recommended with an ng-switch EDIT I was mistaken when I initially said that nothing was happening (browser caching), there appears to be the correct number of options but the source code shows nothing but white space: <select ng-model="form.permitLocality" class="input-block-level ng-pristine ng-valid" ng-switch="" on="localityTypeRadio" ng-hide="form.permitLocality.length"><option value="? string: ?"></option>  <option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option><option ng-switch-when="City" ng-repeat="city in cityList" class="ng-scope ng-binding" value=" "> </option>  </select>

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Read a variable from a variable cookie jquerycookie.

- by Ozaki

TLDR How could I tell "page.html" which one of 3 or so cookies to look at when the cookie is set on the previous page? Currently: When a link is clicked save text of link to cookie When "page.html" is loaded get the value of the cookie Loads the getjson call as per value of the cookie. E.g: <a href="page.html">link1</a> -c1 <a href="page.html">link2</a> -c2 <a href="page.html">link3</a> -c3 See previous discussion here Now that is all good and well apart from the fact if I were to say open them in multiple tabs. It changes the cookie and correctly loads the right data. But if I were to refresh one of these tabs it will load the most recently open data rather than what it should be. So if I were to save a cookie as c1 with a value of link1 c2 with a value of link2 c3 with a value of link3 How could I tell "page.html" which cookie it should be looking at, therefore not breaking the back/forward/refresh buttons on the browser when multiple tabs are open?

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bash script variable inside variable

- by user316100

x=1 c1=string1 c2=string2 c3=string3 echo $c1 string1 I'd like to have the output be string1 by using something like: echo $(c($x)) So later in the script I can increment the value of x and have it output string1, then string2 and string3. Can anyone point me in the right direction?

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Python dictionary to variable assignments based on key value to variable name

- by Art

Basically, I want to take a Dictionary like { "a":"bar", "b":"blah", "c":"abc", "d":"nada" } and use it to set variables (in an Object) which have the same name as a key in the dictionary. class Foo(Object) { self.a = "" self.b = "" self.c = "" } So in the the end self.a = "bar", self.b = "blah", etc... (and key "d" is ignored) Any ideas?

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Using static variable in function vs passing variable from caller

- by Patrick

I have a function which spawns various types of threads, one of the thread types needs to be spawned every x seconds. I currently have it like this: bool isTime( Time t ) { return t >= now(); } void spawner() { while( 1 ) { Time t = now(); if( isTime( t ) )//is time is called in more than one place in the real function { launchthread() t = now() + offset; } } } but I'm thinking of changing it to: bool isTime() { static Time t = now(); if( t >= now() ) { t = now() + offset; return true; } return false; } void spawner() { if( isTime() ) launchthread(); } I think the second way is neater but I generally avoid statics in much the same way I avoid global data; anyone have any thoughts on the different styles?

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angularjs model view update through angular directive

- by Relicset

I am trying to update my view using model in angular directive here is the directive I have created app.directive('aboutOptions', [function() { return { restrict: 'C', scope: { testing: '=' }, transclude: true, link: function(scope, elem, attr) { scope.$watch(attr.ngModel, function() { console.log(scope.$eval(attr.ngModel)); scope.testing = scope.$eval(attr.ngModel); }); } } }]); here is html model and file name is ab.html <input type="text" class="about-options" ng-model="testing" /> Here is the view to be updated and file name is show.html <h2 class="about-options">{{testing}}</h2> ab.html file will be loaded as a template inside jquery ui dialog and my show.html file is in main page If I remove scope: { testing: '=' }, Console is showing what I am typing Update - 1 Tried with the following changes testing: '=test' And in html <input type="text" class="about-options" ng-model="testing" /> <h2 class="about-options">{{test}}</h2>

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grep value inside a variable pointing to other variable

- by Joice

using : ksh *abc = 1 efg = 2 hgd = 3 not known to me * say if i have Value="abc efg hgd" abc efg hgd all contains some value which i dnt know. Now I want to grep the value contained inside abc. like for i in $Value do grep "echo $(($((echo $i | cut -d'|' -f2))))" done this grep should look for the value inside abc efg hgd grep 1 grep 2 grep 3

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Can I create an alias in C# or VB.NET within method scope?

- by Dan Tao

Is there any equivalent to an aliasing statement such as: // C#: using C = System.Console; or: ' VB.NET ' Imports C = System.Console ...but within method scope -- rather than applying to an entire file?

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Why does it matter that in Javascript, scope is function-level, not block-level?

- by Jian Lin

In the question http://stackoverflow.com/questions/1451009/javascript-infamous-loop-problem the accepted answer from Christoph's says that JavaScript's scopes are function-level, not block-level What if Javascript's scopes are block-level, then would the Infamous Loop problem still occur? But will there be a different (or easier way) to fix it? Is it as opposed to other languages, where using a { would start a new scope?

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Can .NET Task instances go out of scope during run?

- by Henry Jackson

If I have the following block of code in a method (using .NET 4 and the Task Parallel Library): var task = new Task(() => DoSomethingLongRunning()); task.Start(); and the method returns, will that task go out of scope and be garbage collected, or will it run to completion? I haven't noticed any issues with GCing, but want to make sure I'm not setting myself up for a race condition with the GC.

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BizTalk 2009 - The Scope of the Table Looping Functoid

- by StuartBrierley

When mapping in BizTalk you will find there are times when you need to map from flat and dispersed elemements in your source schema to a repeated record with child elements in your destination schema. Below is an example of how you can make use of the Table Looping Functoid to bring together these flat elements and create your repeated group. Although this example is purposely simple, I have previsouly encounted this issue on a much more complex scale when mapping the response from a credit scoring agency where all the applicant details were supplied in separate parts of a very flat schema. Consider the source and destination schemas as follows: Although the Table Looping Functoid states that the first input must be a scoping element linked from a repeating group, you can actually also make use of a constant value. In this case I know that the source schema always contains two people, so I set this to two. Then you need to set the number of columns in your table, in this case 2 (name and sex) and link all the required fields from the source schema. Following this you can configure the table. You can then add the Table Extractor functoids and complete the map. If you now validate this map you will see that BizTalk will warn you about the scoping link for the Table Looping Functoid, but this can be safely ignored. C:\Code\Developer Folders\Stuart Brierley\Test Mapping\TableLooping.btm: warning btm1071: A first input of the Table-Looping functoid must be a link from a Source Tree Node which acts as the scoping parameter. Testing the map will produce the following output:

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SSIS Design Pattern: Loading Variable-Length Rows

- by andyleonard

Introduction I encounter flat file sources with variable-length rows on occassion. Here, I supply one SSIS Design Pattern for loading them. What's a Variable-Length Row Flat File? Great question - let's start with a definition. A variable-length row flat file is a text source of some flavor - comma-separated values (CSV), tab-delimited file (TDF), or even fixed-length, positional-, or ordinal-based (where the location of the data on the row defines its field). The major difference between a "normal"...(read more)

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How should modules access data outside their scope?

- by Joe

I run into this same problem quite often. First, I create a namespace and then add modules to this namespace. Then issue I always run into is how best to initialize the application? Naturally, each module has its own startup procedure so should this data(not code in some cases, just a list of items to run) stay with the module? Or should there be a startup procedure in the global namespace which has the startup data for ALL the modules. Which is the more robust way of organizing this situation? Should some things be made centralized or should there be strict adherence to modules encapsulating everything about themselves? Though this is a general architecture questions, Javascript centric answers would be really appreciated!

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Drupal to Wordpress migration scope for SEO

- by Shane

I'm not sure if this is the appropriate forum, please let me know if it's not (or if there is a better one) and I'll withdraw the question. I'm migrating a drupal site to wordpress and I was wondering what the concerns are with respect to preserving google rank, etc. while assuming the page content is somewhat similar. I've set up 301 redirects, and created a new site map, but the surrounding html / menus, etc are different. Is this considered a concern and are there a best practice for this kind of migration?

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Environmental Variable for current domain

- by Krzysztof Goszka

I'm using Ubuntu 12.04 LTS Desktop edition I want to use environmental variable for currently joined domain just like i use $USER to bring current user. From what i read there are few variables for that but none seem to work for me. I also cannot see those variables as active when i type env command. I would appreciate a solution on how to enable that variable or how to make my own variable by pulling current domain name from the system somehow.

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How do I grep in a variable?

- by Ashfame

How to do a grep in a variable? I have stored the wget output in a variable and I need to extract out some strings from it. Like the content of the variable is upgrade http://wordpress.org/download/ http://wordpress.org/wordpress-3.0.5.zip 3.0.5 en_US 4.3 4.1.2 I need to check if the string contains the word upgrade, so I can do a simple grep and then check the exit status of it by $? and proceed. But how can I get the value 3.0.5 which is actually the fourth word? And how to actually grep in a variable?

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Undeclared Scope in Rock Paper Scissors Simple Game

- by Rianelle

#include <iostream> #include <string> #include <cstdlib> #include <ctime> using namespace std; bool win; int winnings; int draws; int loses; string comChoice; string playerChoice; void winGame () { cout << "You won! Play again?" <<endl; cout << "Type y/n" <<endl; char x; cin >> x; if (x == 'y') { beginGame(); } else if ('n'){ cout << "Game Stopped." <<endl; cout << "Number of Draws: " <<draws << endl; cout << "Number of Loses: " <<loses << endl; cout << "Number of Wins: " << winnings << endl; win = true; } } void drawGame (){ ++draws; cout << "Draw! Try again" << endl; return; } void lose () { cout << "You lose! Try again?" <<endl; cout << "Type y/n" <<endl; char feedback; cin >> feedback; if (feedback == 'y') { beginGame(); } else if ('n'){ cout << "Game Stopped." <<endl; cout << "Number of Draws: " <<draws << endl; cout << "Number of Loses: " <<loses << endl; cout << "Number of Wins: " << winnings << endl; } } void beginGame() { cout << "Welcome to the Rock, Paper and Scissors Game!" <<endl; cout << "Let's begin. Type <rock, paper, scissors> for your choice!" <<endl; cin >> playerChoice; srand(time(0)); int randomizer = 1+(rand()%3); if (randomizer == 1) comChoice = "rock"; if (randomizer == 2) comChoice = "paper"; if (randomizer == 3) comChoice = "scissors"; do { if (playerChoice == comChoice) { drawGame(); } if (playerChoice == "rock" && comChoice == "paper") ++loses; lose(); if (playerChoice == "rock" && comChoice == "scissors") ++winnings; winGame(); if (playerChoice == "paper" && comChoice == "rock") ++winnings; winGame(); if (playerChoice == "paper" && comChoice == "scissors") ++loses; lose(); if (playerChoice == "scissors" && comChoice == "rock") ++loses; lose(); if (playerChoice == "scissors" && comChoice == "paper") ++winnings; winGame(); }while (win != true); } int main () { beginGame(); return 0; }

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Grep in a variable

- by Ashfame

How to do a grep in a variable? I have stored the wget output in a variable and I need to extract out some strings from it. Like the content of the variable is upgrade http://wordpress.org/download/ http://wordpress.org/wordpress-3.0.5.zip 3.0.5 en_US 4.3 4.1.2 I need to check if the string contains the word upgrade, so I can do a simple grep and then check the exit status of it by $? and proceed. But how can I get the value 3.0.5 which is actually the fourth word? And how to actually grep in a variable?

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Search Engine Optimization Provides the Best Scope to Be Visible in Search Results

You will surely get latest techniques employed to boost up the ranking in search results when you select Toledo search engine optimization services. Highly skilled professionals will take up your website to put it on the front-page of search result by application of natural process which is completely transparent yet most powerful.

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Expanding The Scope of Bridge Tables

Timothy Claason continues talking about database design in a new article. This one talks about expanding the functionality that Bridge Tables provide in your schema.

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Developing a Log Scope – Part I: Developing the concept

Introducing the concept

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Inline variable assignments in SQL Server 2008

Inline variable assignments in SQL Server 2008

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Notification of low DHCP pool in split scope setup

- by JJBladester

In Windows Server 2008 R2, it is possible to read the Event Viewer for EventID 1020 which is an indication that the DHCP pool is running low on addresses. What if I have two DHCP servers in my domain that use an 80/20 split scope to take a /24 pool of DHCP-allocated IP addresses and split it amongst the two servers according to this Technet Article? In this case, since the scope is split, how can I tell if the total DHCP pool, which is split amongst the two DHCP servers, is beginning to run low on address space?

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onload Event in embedded SVG not calling function in attached script. Scope Issue?

- by Nick

Hi So I've got an XHTML page with a script - not inline > <script type="text/javascript" > src="../global/js/scripts.js"></script> and an embedded (I tried embed and object, same behavior) SVG document with a onload="CheckIfLoaded(evt)" attribute. The problem is firefox doesn't call the CheckIfLoaded() function in scripts.js. Firebug gives me "CheckIfLoaded() is not defined" with no reference to any line numbers. I can't find any information regarding the scope of javascript functions with respect to embedded content. Curiously, it works fine in IE. I could of course add a reference to the script into the SVG file as well but I believe that will result in the client downloading the scripts file twice and in addition I have 1000+ svg files and I'd really rather not add one line to all of them, although I suppose I could write a batch file or whatever if I have to. Any one know more about this? Thanks, Nick

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- by RC

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