bool() function

bool() converts a value to a boolean type.

Function type signature
(v: A) => bool

For more information, see Function type signatures.



(Required) Value to convert.


Convert strings to booleans

bool(v: "true")

// Returns true
bool(v: "false")// Returns false

Convert numeric values to booleans

bool(v: 1.0)

// Returns true
bool(v: 0.0)

// Returns false
bool(v: 1)

// Returns true
bool(v: 0)

// Returns false
bool(v: uint(v: 1))

// Returns true
bool(v: uint(v: 0))// Returns false

Convert all values in a column to booleans

If converting the _value column to boolean types, use toBool(). If converting columns other than _value, use map() to iterate over each row and bool() to convert a column value to a boolean type.

    |> map(fn: (r) => ({r with powerOn: bool(v: r.powerOn)}))

View example input and output

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The future of Flux

Flux is going into maintenance mode. You can continue using it as you currently are without any changes to your code.

Flux is going into maintenance mode and will not be supported in InfluxDB 3.0. This was a decision based on the broad demand for SQL and the continued growth and adoption of InfluxQL. We are continuing to support Flux for users in 1.x and 2.x so you can continue using it with no changes to your code. If you are interested in transitioning to InfluxDB 3.0 and want to future-proof your code, we suggest using InfluxQL.

For information about the future of Flux, see the following: