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46 lines
817 B
46 lines
817 B
2 years ago
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# WordFlip
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### Instructions
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Write a function `WordFlip()` that receives a string and returns it with the first and last words flipped.
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- Prints the Output followed by newline `\n`.
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- If the string is empty, return `Invalid Output`.
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- Ignore spaces if it's more then onr space in between words and all spaces in the edge of the words or sentences.
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### Expected function
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```go
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func WordFlip(str string) string {
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}
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```
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### Usage
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Here is a possible program to test your function:
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```go
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package main
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import (
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"fmt"
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)
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func main() {
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fmt.Print(WordFlip("First second last"))
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fmt.Print(WordFlip(""))
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fmt.Print(WordFlip(" ")) //all spaces
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fmt.Print(WordFlip(" hello all of you! "))
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}
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```
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And its output :
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```go
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$ go run . | cat -e
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last second First$
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Invalid Output$
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$
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you! of all hello$
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```
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