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I am trying pass array as parameter to my controller method but it's not working for me. I tried it in following ways:
http://localhost:3000/med?med_ids=[2,1]
I tried in following way as well and its working for me. I just want to know any good solution
http://localhost:3000/manufacturer/1/medicines?medicine_id[]=2&medicine_id[]=1
inside controller:
@val = params[:medicine_id]
values are coming but I want to make it as array.
Need some help. Thank you.
807
It is also possible to pass an array as an argument to a method. For example, you might want a method that calculates the average of all the numbers in an array. Your main program might look like this: data = [3.5, 4.7, 8.6, 2.9] average = get_average(data) puts "The average is #{average}."
Method 1: Using the apply() method: The apply() method is used to call a function with the given arguments as an array or array-like object. It contains two parameters. The this value provides a call to the function and the arguments array contains the array of arguments to be passed.
A whole array cannot be passed as an argument to a function in C++. You can, however, pass a pointer to an array without an index by specifying the array's name. In C, when we pass an array to a function say fun(), it is always treated as a pointer by fun().
You cannot get array from query string like this:
?med_ids=[2,1]
If you want to pass an array in query string, you need to pass it as follow (as you have mentioned in question):
?medicine_id[]=2&medicine_id[]=1
As an answer to your question: 2nd way is absolutely good way and correct way. Go with it.
60
If you are trying to send parameter like [1,2], then in your controller you will get like "[1,2]",
and you need to parse for get in original array like: JSON.parse "[1,2]"
ans: [1,2] and class Array
36
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