strings.hasPrefix() function
strings.hasPrefix() indicates if a string begins with a specified prefix.
Function type signature
(prefix: string, v: string) => bool
For more information, see Function type signatures.
Parameters
v
(Required) String value to search.
prefix
(Required) Prefix to search for.
Examples
Filter based on the presence of a prefix in a column value
import "sampledata"
import "strings"
sampledata.string()
|> filter(fn: (r) => strings.hasPrefix(v: r._value, prefix: "smpl_5"))
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