How to Read Space-Separated Strings from User Input in Go?

Parsing Strings Separated by Spaces Using fmt.Scanln

When attempting to read a string from user input that contains multiple words separated by spaces, fmt.Scanln may return only the first word. To address this issue:

Understanding fmt.Scanln

fmt.Scanln operates similarly to fmt.Scan, but terminates scanning upon encountering a newline character. The newline character must follow the last item or there must be an EOF (End-of-File) indicator.

Using Scanln to Read Space-Separated Strings

To successfully read space-separated strings, specify multiple variables in the fmt.Scanln call:

<code class="go">var s1 string
var s2 string
fmt.Scanln(&s1, &s2)</code>

This approach assigns the first word to s1 and the second to s2.

Alternative Approach Using bufio.Scanner

Another option is to employ bufio.Scanner:

<code class="go">scanner := bufio.NewScanner(os.Stdin)
for scanner.Scan() {
    s := scanner.Text()
    fmt.Println(s)
}</code>

Here, scanner loops through the standard input and prints each line of input.

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