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48 lines
860 B
48 lines
860 B
1 year ago
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## retainfirsthalf
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### Instructions
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Write a function called `RetainFirstHalf()` that takes a `string` as an argument and returns the first half of this `string`.
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- If the length of the `string` is odd, round it down.
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- If the `string` is empty, return an empty string.
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- If the `string` length is equal to one, return the string.
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### Expected function
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```go
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func RetainFirstHalf(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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"piscine"
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)
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func main() {
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fmt.Println(solutions.RetainFirstHalf("This is the 1st halfThis is the 2nd half"))
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fmt.Println(solutions.RetainFirstHalf("A"))
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fmt.Println(solutions.RetainFirstHalf(""))
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fmt.Println(solutions.RetainFirstHalf("Hello World"))
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}
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```
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And its output:
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```console
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$ go run . | cat -e
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This is the 1st half$
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A$
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$
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Hello$
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```
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