parameter-passing

问题 i have a form in which if the user enters the search query, its parameter should be passed through jquery and after getting the results it should load the results in the div container. since i'm not very well-versed with jquery, how would i do this? html: //currently the data is being displayed on pageload: $(document).ready(function() { $("#bquote").load("quotes_in.php") }); $(".bsearch") .keydown(function() { //pass the parameter to the php page //display in div #bquote }); <!-- Begin

问题 I read that Java does everything by call by value. I was wondering how to verify this fact? As far as I understand, in case of objects(not primitives) functions get its own copy of reference but points to same object. In that case, reference of that object in callee function and caller function should be different? How can I verify that? In other words, how to print the reference of the object. System.out.println(object); //does this print reference i.e text following @ EDIT: I understand

问题 let's say I need to create one huge array and use it during my program inside another function. I want to do this without copying this array every time I use it. I know that if I simply give them as argument Julia has a call-by-sharing mechanism and it won't copy the arguments. But if I do something as following, will it still be able to operate without creating copies every time in the loop ?: function main() huge_arr = ones(Float32,20000,30000) another_arr = rand(4,5) coupled_var = (huge

问题 Closed . This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 6 years ago . I was just reading this stack question: Is Java "pass-by-reference" or "pass-by-value"? And I was wondering if it is considered bad programming practice to use a method to alter an object by it's address. I question this because it is no doubt a confusing property of Java. So

问题 Envision examplefn <- function(x = NULL, ...){str(x)} I'm trying to get this function to honor the implicit x = NULL . Consider the following: For a call using both x and ... this results as expected in: > examplefn(1,2) num 1 If using an explicit x = NULL , the behavior also is as expected: > examplefn(x = NULL,2) NULL However, when attempting (and expecting the usage of x = NULL from the function definition, I get: > examplefn(2) num 2 Implying, that the call is evaluated by argument order,

问题 I am facing an issue with date parameters passed to SQL Server stored procedure from EXCEL VBA code. The stored procedure taking two date parameters @FromDate and @ToDate . From Excel I want to execute this procedure with the date values taken from cells. The issue is that, the dates from cells to procedure are passed in the format "dd/mm/yyyy" irrespective of any format changes I do in excel cell. Whereas the SQL procedure is accepting the formats "yyyy-mm-dd" or "yyyy-mon-dd" or "yyyy/mm/dd

问题 How can I pass member function pointer to std::function through a function. I am going to explain it by comparison (Live Test): template<class R, class... FArgs, class... Args> void easy_bind(std::function<R(FArgs...)> f, Args&&... args){ } int main() { fx::easy_bind(&Class::test_function, new Class); return 0; } I get an error message: no matching function for call to ‘easy_bind(void (Class::*)(int, float, std::string), Class*)’ I just don't understand why a function pointer cannot be passed

问题 I have an Oracle stored procedure named CREATE_CASE_EXL : PROCEDURE CREATE_CASE_EXL(P_RICdata RICTab, P_sACTION_TYPE IN VARCHAR2); where RICTab is a custom type: TYPE RICTab IS TABLE OF MMSRRicRec INDEX BY BINARY_INTEGER; TYPE MMSRRicRec IS RECORD ( RIC VARCHAR2(32), FID_NO NUMBER(8), REC_ID NUMBER(8), MMS_ACTION VARCHAR2(1) ); I run this code in PL/SQL to execute CREATE_CASE_EXL : DECLARE pTE_RICS RICTab BEGIN pTE_RICS(1).RIC := 'RIC1'; pTE_RICS(1).FID_NO := NULL; pTE_RICS(1).REC_ID := 3;

问题 I have a problem. I have an XML file that contains information about 100 courses. I have an XSL file that nicely displays the list of 100 courses. But what if I want to only display 1 course. Can I pass a parameter to the XSLT file to tell it to only display "ENGL 100" ? The XML looks something like this: <document> <menu> <item> <name>MTH 300</name> <brief>Mathematics Skill Development</brief> <description>A course in the fundamentals of ...</description> </item> <item> <name>MTH 301</name>

问题 I am new to this network. Hoping I'll find an answer to this problem. I have a SSIS Project with multiple Packages which are using the Project Parameters. I am trying to update the Project Parameters e.g. @PeriodStart: 2014-05-31. I can't find a way to dynamically write to the Project Parameter. I am using Visual Studio 2010 in 4.0 Framework. Please can anyone shed light on this ?! Kind Regards Bal 回答1: Project parameters are read only. What you are after is to assign variables depending on