function

问题 I am trying to use some string functions like trim or concat using JSTL. I tried the following. I tried adding <%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %> but I ended up with the error. I think this is for other JSTL version like 1.2 or 1.1 All I would need to know is how to use string function in JSTL 1.0 回答1: JSTL 1.0 does not have the /jsp part in the taglib URI. Remove that part. <%@ taglib prefix="fn" uri="http://java.sun.com/jstl/functions" %> See also: Our

问题 Accidentally I compiled a source similar to this: //void y(); //optionally declaring y() void x() { //some code... void y(); //some code... } //void y() {/*some code*/} //optionally defining y() This was compiled with VS 2017 and also two clang versions. None of these compilers complained about this source code – no errors, no warnings. There was a typo in my code – in this example, there should be no void in front of y() and therefore y() was supposed to be called, so it was a rather sneaky

问题 So I have a method which returns the items names that I get. But with the first query it returns an error. Which to my opinion shouldn't be there because its the right syntax. Here is the code: void showInventory(String userId, MessageReceivedEvent event) throws HTTP429Exception, DiscordException, MissingPermissionsException{ sendMessage("test0",event); String sql = "SELECT itemID FROM inventory WHERE playerID=?"; String sql2 = "SELECT Name FROM items WHERE ID=?"; java.sql.PreparedStatement

问题 What I try to do is to write all output inside a function into a file. Maybe I need a way to assign all output (not only arrays) in test_func to some kind of variable so that I can return it, but I can't figure out. #include <iostream> #include <fstream> #include <functional> using namespace std; void test_func() { int a[] = {20,42,41,40}; int b[] = {2,4,2,1}; cout << "Below is the result: "<< endl; for (int i=0; i<4; i++){ cout << "***********************" << endl; cout << a[i] << " : " << b

问题 What I try to do is to write all output inside a function into a file. Maybe I need a way to assign all output (not only arrays) in test_func to some kind of variable so that I can return it, but I can't figure out. #include <iostream> #include <fstream> #include <functional> using namespace std; void test_func() { int a[] = {20,42,41,40}; int b[] = {2,4,2,1}; cout << "Below is the result: "<< endl; for (int i=0; i<4; i++){ cout << "***********************" << endl; cout << a[i] << " : " << b

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 4 years ago . Improve this question What are the disadvantages to nesting a function within a nested function within a nested function... Here's an example: JS/jQuery: function one() { // do something function two() { // do something function three() { // do something function four() { //

问题 I use this code to perform a HTTP POST request and deserialize the returned value: ParameterizedTypeReference<MyClass> typeRef = new ParameterizedTypeReference<>() {}; HttpEntity<Object> requestEntity = new HttpEntity<>("some text"); ResponseEntity<MyClass> result = restTemplate.exchange("/test", HttpMethod.POST, requestEntity, typeRef); MyClass returnValue = result.getBody(); To make it easier to use, I tried to wrap the code in a function like so: public <T> T post(Object content, Class<T>

问题 I'm trying to figure out a way to get all functions in a Lua script. This script has been compiled into a function through loadfile. For example, I'd want to get every function defined in the script below. function example1() end local function example2() end local library = {} function library:example3() end (function() -- Functions like this too. end) The names aren't important, I'm just looking for a way to get the actual functions so I can use them in debug.getinfo and get information

问题 As we know that function name can be treated as parameters to pass in/out by other subroutines. I wonder if we have any tricks to save a list of functions into an array, which would be passed in and out for process. !-------for example. At somewhere we set any array type(Idonotknow)::Farray(N) Then set the value: Farray(1)%any=>fun1 Farray(2)%any=>fun2 ... Farray(N)%any=>funN where fun1,fun2...funN are something like Function fun1(input) implicit none statements End Function Finally we can

问题 I was parsing gl.h and I noticed a quite unusual (at least to me) way of declaring openGL functions. Here is an example: GLAPI void APIENTRY glEvalCoord1d( GLdouble u ); GLAPI void APIENTRY glEvalCoord1f( GLfloat u ); GLAPI void APIENTRY glEvalCoord1dv( const GLdouble *u ); Obviously, those are regular functions with return type void, but my questions is about the effect of GLAPI and APIENTRY macros. Those two are platform specific, declared in the beginning of the header: /* GLAPI, part 1