helpermethods

When to create helper methods and separate files

由 ￡可爱￡侵袭症＋ 提交于 2019-12-24 08:22:42
问题 Background: I have a large (several hundred lines) class that manages a concept based on some primitive-type data structures long[] slist; //list of unique patterns (related to polyominoes) int[][][] sref;//patterns at each place [location][depth][<list of indices in slist>] Question: The two methods that populate and update these data are going to be quite long, with handfuls of 5-20 line tasks, some shared, others unique. I probably want to make a helper method for each sub-task. update(...

StackFrame.GetMethod().Name

由 江枫思渺然 提交于 2019-12-24 06:45:57
问题 I'm using this helper to resolve the name of the method that is currently being executed for logging purposes. [MethodImpl(MethodImplOptions.NoInlining)] public static string GetCurrentMethod() { StackTrace st = new StackTrace(); StackFrame sf = st.GetFrame(1); return sf.GetMethod().Name; } This is the string that is returned <Frequency>b__46 " What does the b__46 mean? And is there a way to just retrieve the word "Frequency?" This is calling the helper. return ProxyCallWrapper.Execute<bool,

Where do I put helper methods for ActionMailer views?

由 情到浓时终转凉″ 提交于 2019-12-17 18:48:48
问题 I have a method that takes an array of strings and joins them so they do something like this: >> my_arr => ["A", "B", "C"] >> and_join(my_arr) => "A, B, and C" Which I'd like my mailer to have access to so I can output some information into an email. I can't seem to find a good place to put it and putting it in the application_helper.rb file and it doesn't find it there. Where should it go? 回答1: Use the helper method in your mailer to define the helper class to use # mailer_helper.rb module

Recursive helper method

由 ￣綄美尐妖づ 提交于 2019-12-12 00:56:27
问题 i cant find the right solution for this exercise, here is the task: (Occurrences of a specified character in an array) Write a recursive method that finds the number of occurrences of a specified character in an array. You need to define the following two methods. The second one is a recursive helper method. public static int count(char[] chars, char ch) public static int count(char[] chars, char ch, int high) Write a test program that prompts the user to enter a list of characters in one

Helper methods to be used in Controllers AND Views in Rails

由 流过昼夜 提交于 2019-12-07 18:08:53
问题 I understand I can put a helper method in a Helper class inside the helper folder in Rails. Then that method can be used in any view. And I understand I can put methods in the ApplicationController class and that method can be used in any controller. Where's the proper place to put a method that is frequently used in both controllers and views? 回答1: You can put it in the controller and call: helper_method :my_method from the controller. 回答2: You can put a method in a controller and then call

How to organize helper functions

由 可紊 提交于 2019-12-06 15:45:26
问题 I need to create lot of helper routines for converting strings. Something like : String Function1(String s) {} I would like to call them from any Activity . What is the best way to do this ? Do I need to create a class or not ? I was thinking just to have one separate file with all these functions. Is this a candidate for a package or not ? 回答1: Create a class with public static methods, then you can call them every where with ClassName.methodName(parameters): public class Util { public

Helper methods to be used in Controllers AND Views in Rails

由 久未见 提交于 2019-12-06 03:50:51
I understand I can put a helper method in a Helper class inside the helper folder in Rails. Then that method can be used in any view. And I understand I can put methods in the ApplicationController class and that method can be used in any controller. Where's the proper place to put a method that is frequently used in both controllers and views? You can put it in the controller and call: helper_method :my_method from the controller. You can put a method in a controller and then call helper_method in the controller to indicate that this method is available as if it were in a helper too. For

Unit test helper methods?

由 一曲冷凌霜 提交于 2019-12-03 11:35:40
问题 I have classes which previously had massive methods so I subdivided the work of this method into 'helper' methods. These helper methods are declared private to enforce encapsulation - however I want to unit test the big public methods. Is it good to unit test the helper methods too as if one of them fail the public method that calls it will also fail, and this way we can identify why it failed? Also in order to test these using a mock object I would need to change their visibility from

Unit test helper methods?

由 孤街醉人 提交于 2019-12-02 22:57:58
I have classes which previously had massive methods so I subdivided the work of this method into 'helper' methods. These helper methods are declared private to enforce encapsulation - however I want to unit test the big public methods. Is it good to unit test the helper methods too as if one of them fail the public method that calls it will also fail, and this way we can identify why it failed? Also in order to test these using a mock object I would need to change their visibility from private to protected, is this desirable? One way is to omit private and put the tests in the same package.

Why is using static helper methods in Java bad?

由 北战南征 提交于 2019-11-28 23:08:07
I'm asking because I'm trying to use a mocking framework (Mockito) which does not allow you to mock static methods. Looking into it I've found quite a few blog posts saying that you should have as few static methods as possible, but I'm having difficulty wrapping my head around why. Specifically why methods that don't modify the global state and are basically helper methods. For instance I have a class called ApiCaller that has several static methods. One of the static method's purpose is to execute an HTTP call, deal with any custom issues our server might have returned (ex. user not logged
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