go fmt.Scan into Array

Question

The fmt package has a Scan function that reads stdin, and writes consecutive space separated values to the variables you provide. Is there a way to use this with Slices, so that I could create a slice of sice n, and have scan read n values and put them into the slice?

You can use bytes.Buffer or bytes.Reader for this purpose. These struct are specifically designed for the purpose you have. — fuz
– fuz, Commented Jun 5, 2013 at 9:55

Volker · Accepted Answer · 2013-06-05 10:06:03Z

2

Just wrap your call to fmt.Scan in a for loop.

answered Jun 5, 2013 at 10:06

Volker

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Thomas Ahle Over a year ago

Apparently this can be slow, since fmt.Scan doesn't use buffering. I've seen fmt.Fscan + bufio.Reader(os.Stdin) suggested instead.

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