How to Add a Space Between Two Variable Values in Ruby

Learn how to effectively concatenate values in Ruby with spaces for better validation in your applications.
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This video is based on the question https://stackoverflow.com/q/70145316/ asked by the user 'Tadeu' ( https://stackoverflow.com/u/12990232/ ) and on the answer https://stackoverflow.com/a/70145394/ provided by the user 'mauriciodelos' ( https://stackoverflow.com/u/10515784/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Add a Space Between Two Variable Values in Ruby

When programming in Ruby, string manipulation is a key aspect that developers often encounter. One common issue arises when we deal with first names and last names that need to be combined for validation checks. In this guide, we will explore how to effectively add a space between two variable values in Ruby, ensuring they are compared correctly during validations.

The Problem

Imagine you have two fields populated with values using the Faker gem: one for the first name and one for the last name. You retrieve these values and store them in variables, but when it comes time to compare the full name in a logged area, you encounter a pesky issue:

Expected Output: "RustyDevonKubKoss"

Actual Output: "RustyDevon KubKoss"

The error arises because the concatenation of @ take_first_name and @ take_last_name does not include a space in between. This leads to incorrect validation results when you try to check if the combined user name matches what appears in the logged area.

The Solution

To resolve this issue and ensure the first name and last name are concatenated correctly with a space in between, follow these steps:

Step 1: Modify String Concatenation

Instead of concatenating the two variables directly like this:

[[See Video to Reveal this Text or Code Snippet]]

You should format it as follows to include a space:

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Final Code Example

Here’s how the full method would look after implementing the change:

[[See Video to Reveal this Text or Code Snippet]]

Breakdown of the Method

String Interpolation: Using # {} enables you to embed the values of variables directly within a string, conveniently adding a space between the first and last names.

Validation Check: The expect method checks whether take_user from the logged area matches the newly formatted full name.

Conclusion

By using string interpolation, you can easily avoid issues related to concatenating strings in Ruby that need to maintain spacing. This small change can significantly improve the accuracy of validations when combining names or other text fields. Always keep such string manipulations in mind when working with user inputs or dynamic text in your applications.

Now you’re equipped to handle string concatenation in Ruby like a pro! Happy coding!