strings.Substr
Syntax
strings.Substr STRING [START] [LENGTH]
Returns
string
Alias
substr
The start position is zero-based, where 0 represents the first character of the string. If START is not specified, the substring will begin at position 0. Specify a negative START position to extract characters from the end of the string.
If LENGTH is not specified, the substring will include all characters from the START position to the end of the string. If negative, that number of characters will be omitted from the end of string.
{{ substr "abcdef" 0 }} → abcdef
{{ substr "abcdef" 1 }} → bcdef
{{ substr "abcdef" 0 1 }} → a
{{ substr "abcdef" 1 1 }} → b
{{ substr "abcdef" 0 -1 }} → abcde
{{ substr "abcdef" 1 -1 }} → bcde
{{ substr "abcdef" -1 }} → f
{{ substr "abcdef" -2 }} → ef
{{ substr "abcdef" -1 1 }} → f
{{ substr "abcdef" -2 1 }} → e
{{ substr "abcdef" -3 -1 }} → de
{{ substr "abcdef" -3 -2 }} → d