parameter-passing

问题 I am having trouble passing and reading arguments inside subroutine which is expected to have two arrays. sub two_array_sum { # two_array_sum ( (1 2 3 4), (2, 4, 0, 1) ) -> (3, 6, 3, 5) # I would like to use parameters @a and @b as simply as possible } # I would like to call two_array_sum here and pass two arrays, @c and @d I have seen and tried several examples from the web, but none of them worked for me. 回答1: There are two ways you can do this: by prototype by reference But before I

问题 I am refreshing my page using jQuery: location.reload(); This is working great but I want to refresh the same page by passing a parameter to URL. How can I do this by using jQuery? Ex: If my url is www.myweb.com , I want to refresh this by passing a parameter like this www.myweb.com?single Thank you 回答1: You should be able to accomplish this by using location.href if(window.location.hostname == "www.myweb.com"){ window.location.href = window.location.href + "?single"; } 回答2: I would use REGEX

问题 I want to create a plugin for phone which pass and returns the value between javascript and android. Can anybody suggest any ideas on how to do this? 回答1: Actually, this is not very difficult. Here, I will show you how to call native code from javascript within the page and vice-versa: Calling native code from within web view : When creating the web view add javascript interface (basically java class whose methods will be exposed to be called via javascript in the web view.

问题 I have question: what is the difference between these two declarations? public static void printMax(double... numbers) { ... } public static void printmax(double numbers[]) { ... } Is double... numbers the same as double numbers[] ? 回答1: On varargs The Type... construct in method parameter declaration is commonly what is called varargs. In JLS, it's called the variable arity parameter. JLS 8.4.1 Format parameters The last formal parameter in a list is special; it may be a variable arity

问题 Is there any way to pass values and variables between php scripts? Formally, I tried to code a login page and when user enter wrong input first another script will check the input and if it is wrong, site returns to the last script page and show a warning like "It is wrong input". For this aim, I need to pass values from scripts I guess. Regards... :P 回答1: To pass info via GET : header('Location: otherScript.php?var1=val1&var2=val2'); Session : // first script session_start(); $_SESSION[

问题 Is there any way to pass values and variables between php scripts? Formally, I tried to code a login page and when user enter wrong input first another script will check the input and if it is wrong, site returns to the last script page and show a warning like "It is wrong input". For this aim, I need to pass values from scripts I guess. Regards... :P 回答1: To pass info via GET : header('Location: otherScript.php?var1=val1&var2=val2'); Session : // first script session_start(); $_SESSION[

问题 To find the row-wise correlation of two matrices X and Y, the output should have a correlation value for row 1 of X and row 1 of Y, ..., hence in total ten values (because there are ten rows): X <- matrix(rnorm(2000), nrow=10) Y <- matrix(rnorm(2000), nrow=10) sapply(1:10, function(row) cor(X[row,], Y[row,])) Now, how should I apply this function to two lists (containing around 50 dataframes each)? Consider list A has dataframes $1, $2, $3... and so on and list B has similar number of

问题 I have a browse.xhtml where I browse a list of cars and I want to view the details of the car in details.xhtml when a "View more" button is pressed. Their backing beans are @ViewScoped and are called BrowseBean and DetailsBean , respectively. Now, I wouldn't like the user/client to see the car ID in the URL, so I would like to avoid using GET params, as presented here and here. Is there any way to achieve this? I'm using Mojarra 2.2.8 with PrimeFaces 5 and OmniFaces 1.8.1. 回答1: Depends on

问题 I have a browse.xhtml where I browse a list of cars and I want to view the details of the car in details.xhtml when a "View more" button is pressed. Their backing beans are @ViewScoped and are called BrowseBean and DetailsBean , respectively. Now, I wouldn't like the user/client to see the car ID in the URL, so I would like to avoid using GET params, as presented here and here. Is there any way to achieve this? I'm using Mojarra 2.2.8 with PrimeFaces 5 and OmniFaces 1.8.1. 回答1: Depends on

问题 I have a browse.xhtml where I browse a list of cars and I want to view the details of the car in details.xhtml when a "View more" button is pressed. Their backing beans are @ViewScoped and are called BrowseBean and DetailsBean , respectively. Now, I wouldn't like the user/client to see the car ID in the URL, so I would like to avoid using GET params, as presented here and here. Is there any way to achieve this? I'm using Mojarra 2.2.8 with PrimeFaces 5 and OmniFaces 1.8.1. 回答1: Depends on