Pipe operator only works in specific order

[Folyd]

cannot convert to string, the value is HELLO WORLD.

fn to_uppercase(text: str) -> str {
 return text.to_uppercase();
}

fn remove_spaces(text: str) -> str {
 return text.replace(" ", "");
}

fn count_chars(text: str) -> int {
 return len(text);
}

let result = "Hello World" 
 |> to_uppercase // "HELLO WORLD"
 |> remove_spaces // "HELLOWORLD"
 |> count_chars; // 10

print(result); // 10

However, this works:

let result = "Hello World" 
 |> remove_spaces // "HELLOWORLD"
 |> to_uppercase // "HELLO WORLD"
 |> count_chars; // 10

[Folyd]

let processed = "hello world" 
 |> str.trim()
 |> str.to_uppercase()
 |> str.replace("WORLD", "AISCRIPT");

print(processed); // "HELLO AISCRIPT"