hex.string() function
hex.string() is a user-contributed function maintained by
the package author.
hex.string() converts a Flux basic type to a hexadecimal string.
The function is similar to string(), but encodes int, uint, and bytes
types to hexadecimal lowercase characters.
Function type signature
(v: A) => string
Parameters
v
(Required) Value to convert.
Examples
- Convert integer to hexadecimal string
- Convert a boolean to a hexadecimal string value
- Convert a duration to a hexadecimal string value
- Convert a time to a hexadecimal string value
- Convert an integer to a hexadecimal string value
- Convert a uinteger to a hexadecimal string value
- Convert a float to a hexadecimal string value
- Convert bytes to a hexadecimal string value
- Convert all values in a column to hexadecimal string values
Convert integer to hexadecimal string
import "contrib/bonitoo-io/hex"
hex.string(v: 1234)// Returns 4d2
Convert a boolean to a hexadecimal string value
import "contrib/bonitoo-io/hex"
hex.string(v: true)// Returns "true"
Convert a duration to a hexadecimal string value
import "contrib/bonitoo-io/hex"
hex.string(v: 1m)// Returns "1m"
Convert a time to a hexadecimal string value
import "contrib/bonitoo-io/hex"
hex.string(v: 2021-01-01T00:00:00Z)// Returns "2021-01-01T00:00:00Z"
Convert an integer to a hexadecimal string value
import "contrib/bonitoo-io/hex"
hex.string(v: 1234)// Returns "4d2"
Convert a uinteger to a hexadecimal string value
import "contrib/bonitoo-io/hex"
hex.string(v: uint(v: 5678))// Returns "162e"
Convert a float to a hexadecimal string value
import "contrib/bonitoo-io/hex"
hex.string(v: 10.12)// Returns "10.12"
Convert bytes to a hexadecimal string value
import "contrib/bonitoo-io/hex"
hex.string(v: bytes(v: "Hello world!"))// Returns "48656c6c6f20776f726c6421"
Convert all values in a column to hexadecimal string values
Use map() to iterate over and update all input rows.
Use hex.string() to update the value of a column.
The following example uses data provided by the sampledata package.
import "sampledata"
import "contrib/bonitoo-io/hex"
data =
sampledata.int()
|> map(fn: (r) => ({r with _value: r._value * 1000}))
data
|> map(fn: (r) => ({r with _value: hex.string(v: r.foo)}))
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