expression Questions

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I have a query which filters results: public IEnumerable<FilteredViewModel> GetFilteredQuotes() { return _context.Context.Quotes.Select(q => new FilteredViewModel { Quote = q, QuotePr...
Fetterlock asked 4/4, 2015 at 15:57

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Given a vector of strings, I would like to create an expression without the quotation marks. # eg, I would like to go from c("string1", "string2") # to... (notice the lack of '"' marks) quote(l...
Sigmatism asked 4/2, 2013 at 23:35

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In Grails (<2.3), if I leave grails.views.default.code='none' in the grails Config.groovy, it's up to me to HTML encode my expressions explicitly in the GSP files: ${myValue?.encodeAsHTML()}. I...
Dictate asked 26/8, 2009 at 21:1

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Say I have an expression: ( A >= 10 && B == 20 ) || ( C < 30 ) || ( D != 50 ) I can suggest the following JSON to store/represent this expression: { "filter": [ { "var":"A", "...
Guzel asked 29/3, 2015 at 13:43

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I want to filter recods in OPenERP using domain filter expression In the recored I have a field of list of users, so i want get the record where the user logged in the list [(user.id , 'in' , 'us...
Lorelle asked 30/1, 2013 at 16:24

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Assume I have a value x which is of some (unknown) type (especially: scalar, vector or list). I would like to get the R expression representing this value. If x == 1 then this function should simpl...
Zygotene asked 2/3, 2015 at 15:40

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I want to apply the same aggregation to multiple data tables, without rewriting the aggregation scheme. Consider dt1 <- data.table(id = c(1,2), a = rnorm(10), b = rnorm(10), c = rnorm(10)) dt2...
Madra asked 26/2, 2015 at 23:2

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I'm trying to do something like this: <ul> <li ng-repeat="{{myRepeatExpression}}">{{row.name}}</li> </ul> But because the ng-repeat logic is in the compile state of the ...
Prebo asked 31/7, 2013 at 13:6

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Today I was debugging some code of mine that builds a few ExpressionTrees, compiles them to callable Delegates and calls them afterwards if required. While doing this I encountered a FatalExecution...

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As a symptom of R being a functional language, it is possible to specify many control structures using pure functional notation. For example, an if statement: > as.list((substitute(if(a == 1) 1...
Schindler asked 4/6, 2014 at 17:7

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I have the following code which reads an file name from the command line and opens this file: #include <stdio.h> #include <stdlib.h> int main(int argc, char **argv){ FILE *datei; cha...
Margarine asked 23/2, 2015 at 18:18

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I was tampering with Expressions and I got confused at some points We can assign same LamdaExpression to both Expression and/or Func. But we cannot assign a Func to an Expression (or an Expressio...
Athome asked 5/1, 2013 at 19:29

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I am coding a MVC 5 internet application, and I have an expression as follows: public Expression<Func<Account, bool>> IsExpiresDateTimeLessThanMinimumDaysLeftInFreeTrialSubscription(in...
Communize asked 4/2, 2015 at 1:44

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So I've got an aspect with a method declared with the following expression: @Before("execution(* aaa.bbb.ccc.*.*(..))") This works perfectly for all classes in the package aaa.bbb.ccc. Now, howe...
Gaziantep asked 20/1, 2015 at 19:44

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Could you please help me understand why variable a is not incremented in the first case but it is in the second case? Case 1: int a = 10; a = a++; Console.WriteLine(a); //prints 10 Case 2: in...
Irwinirwinn asked 17/1, 2015 at 5:51

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The screenshot says it pretty much. I have the overloads as seen in the screenshot. When using a string as second parameter the compiler should figure out that the first argument can only be a Func...
Buy asked 12/1, 2015 at 12:22

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I'm looking for a relatively simpler (when compared with writing a parser) way to evaluate boolean expressions in Java, and I do not want to use the JEP library. I have a String expression like: (...
Allusion asked 15/11, 2009 at 5:26

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I have been learning web application security penetration testing . The scenario is, there is a cross site scripting vulnerability in a test environment demo web application which is developed for ...
Courbet asked 25/12, 2014 at 14:7

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I'm trying to write a struct to calculate the pointer offset between a base and a derived class as a constant expression in C++03. The code is as follows: template <typename Base, typename Deri...
Vehement asked 25/12, 2014 at 10:37

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I am trying to understand thoroughly the difference between a statement and an expression But i am finding it confusing even after reading this answer Expression Versus Statement look at the follo...
Scopoline asked 22/12, 2014 at 9:49

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can anyone help me out in solving my issue. I am using the code given below: public IEnumerable<InvoiceHeader> Getdata(Expression<Func<InvoiceHeader, bool>> predicate) { return ...
Streusel asked 5/1, 2012 at 11:23

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Given an expression foo, I could declare a top-level function bar = foo and get the type of foo as Type by reifying bar: case reify 'bar of VarI _ t _ _ -> t Is there a direct way of gett...
Rector asked 31/1, 2014 at 21:56

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I wanna create Func<IQueryable<TEntity>, IOrderedQueryable<TEntity>> from list of SortingItems dynamically. I mean I wanna create the following expression: entity => entity.Or...
Eyetooth asked 4/12, 2014 at 12:3

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In a Matlab script I call a user-defined function (m-function). My function returns a value while printing the value to the command window using disp and/or fprintf calls. When writing an expressi...
Soll asked 20/11, 2014 at 20:32

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I'm working on a project involving cleaning a list of data on college majors. I find that a lot are misspelled, so I was looking to use the function gsub() to replace the misspelled ones with its c...
Thalamencephalon asked 14/3, 2011 at 18:20

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