How to properly check if a variable is in array using Ruby?

Question

I am trying to check if variable is in array so I used a solution found here.

The code below works fine if I pass value of tea direct in the include function as per below.

mycheck= ['Soap', 'Tea', 'Sugar'].include? 'Tea'
      if mycheck == true
        print("yes present")
      else
        print("not present")
      end

My issues: My issue if I set value tea to a variable as per code below, it returns false

var_tea = 'Tea'
mycheck= ['Soap', 'Tea', 'Sugar'].include? var_tea
      if mycheck == true
        print("yes present")
      else
        print("not present")
      end

Is there any other alternative way like using is_array(), etc?

Your code is working fine, it's not the issue it may be something else. please cross check it. — Anand
– Anand, Commented Apr 17, 2019 at 8:53

Ursus · Accepted Answer · 2019-04-17 09:01:12Z

2

I tried these two lines

var_tea = 'Tea'
mycheck = ['Soap', 'Tea', 'Sugar'].include? var_tea

and mycheck is true

My guess is that you obviously don't have that variable in the line above, it's probably coming from a request, and that's not exactly Tea, maybe tea. Try to print var_tea before that check.

puts var_tea.inspect

edited Apr 17, 2019 at 9:01

answered Apr 17, 2019 at 8:52

Ursus

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1 Comment

Ursus Over a year ago

my pleasure @NancyMooree :)

Cdalbergue · Accepted Answer · 2019-04-17 09:41:05Z

0

Your code seems right, but you could make it better.

First of all, you're checking if a variable is true. A better way to do it in ruby would be:

if mycheck
  print("yes present")
else
  print("not present")
end

You can also try:

my_check = var_tea.in? ['Soap', 'Tea', 'Sugar']

If you have the same issue, make sure that you double check your code, and that you don't have any my_check= method or something.

answered Apr 17, 2019 at 9:41

Cdalbergue

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