strings.Split acting weird - go

Question

I am doing a simple strings.Split on a date.
The format is 2015-10-04
month := strings.Split(date, "-")
output is [2015 10 03].
If I do month[0] it returns 2015 but when I do month[1], it returns
panic: runtime error: index out of range
Though it clearly isn't. Am I using it wrong? Any idea what is going on?

Answer 1

Here's a complete working example:
package main
import "strings"
func main() {
date := "2015-01-02"
month := strings.Split(date, "-")
println(month[0])
println(month[1])
println(month[2])
}
Output:
2015
01
02
Playground
Perhaps you're not using the correct "dash" character? There are lots:
+-------+--------+----------+
| glyph | codes |
+-------+--------+----------+
| - | U+002D | - |
| ֊ | U+058A | ֊ |
| ־ | U+05BE | ־ |
| ᠆ | U+1806 | ᠆ |
| ‐ | U+2010 | ‐ |
| ‑ | U+2011 | ‑ |
| ‒ | U+2012 | ‒ |
| – | U+2013 | – |
| — | U+2014 | — |
| ― | U+2015 | ― |
| ⁻ | U+207B | ⁻ |
| ₋ | U+208B | ₋ |
| − | U+2212 | − |
| ﹘ | U+FE58 | ﹘ |
| ﹣ | U+FE63 | ﹣ |
| － | U+FF0D | － |
+-------+--------+----------+
Here is the code with a different input string, which also throws an index out of bounds exception:
package main
import "strings"
func main() {
date := "2015‐01‐02" // U+2010 dashes
month := strings.Split(date, "-")
println(month[0])
println(month[1])
println(month[2])
}
Playground.