Thank you thank you thank you

When working with Julia, there are multiple ways to solve a given problem. In this article, we will explore three different approaches to solve the following question:

Problem Statement:

Given an input string, we need to output the same string but with each word repeated three times.

Let’s start by defining the input and output:

input_string = "Thank you thank you thank you"
expected_output = "Thank you thank you thank you Thank you thank you thank you Thank you thank you thank you"

Approach 1: Using a For Loop

One way to solve this problem is by using a for loop to iterate over each word in the input string and appending it three times to a new string. Here’s the code:

function repeat_words(input_string)
    words = split(input_string)
    output_string = ""
    for word in words
        output_string *= "$word $word $word "
    end
    return strip(output_string)
end

output = repeat_words(input_string)

The above code splits the input string into individual words using the `split` function. Then, it iterates over each word and appends it three times to the `output_string` variable. Finally, it returns the `output_string` after removing any leading or trailing whitespaces using the `strip` function.

Approach 2: Using List Comprehension

Another approach is to use list comprehension to achieve the same result. Here’s the code:

function repeat_words(input_string)
    words = split(input_string)
    output = [word for word in words, _ in 1:3]
    return join(output, " ")
end

output = repeat_words(input_string)

In this code, we use list comprehension to create a new list `output` where each word is repeated three times. Finally, we join the elements of the `output` list using the `join` function and return the resulting string.

Approach 3: Using String Interpolation

The third approach involves using string interpolation to repeat each word three times. Here’s the code:

function repeat_words(input_string)
    words = split(input_string)
    output = join(["$word $word $word" for word in words], " ")
    return output
end

output = repeat_words(input_string)

In this code, we use a list comprehension to create a new list where each word is repeated three times using string interpolation. Then, we join the elements of the list using the `join` function and return the resulting string.

After trying out all three approaches, it is evident that the second approach using list comprehension is the most concise and efficient solution. It achieves the desired result with fewer lines of code and performs the task efficiently.

Therefore, the second approach using list comprehension is the recommended solution for solving this particular Julia question.