strings.substring() function
The strings.substring()
function returns a substring based on start
and end
parameters.
These parameters are represent indices of UTF code points in the string.
Output data type: String
import "strings"
strings.substring(v: "influx", start: 0, end: 4)
// returns "infl"
Parameters
v
The string value to search.
start
The starting inclusive index of the substring.
end
The ending exclusive index of the substring.
Examples
Store the first four characters of a string
data
|> map(fn: (r) => ({r with abbr: strings.substring(v: r.name, start: 0, end: 4)}))
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