Struct vega_lite_4::Parameter

pub struct Parameter {
    pub bind: Option<Binding>,
    pub description: Option<String>,
    pub expr: Option<String>,
    pub name: Option<String>,
    pub value: Option<Value>,
}

Fields

bind: Option<Binding>

Binds the parameter to an external input element such as a slider, selection list or radio button group.

description: Option<String>

A text description of the parameter, useful for inline documentation.

expr: Option<String>

An expression for the value of the parameter. This expression may include other parameters, in which case the parameter will automatically update in response to upstream parameter changes.

name: Option<String>

Required. A unique name for the parameter. Parameter names should be valid JavaScript identifiers: they should contain only alphanumeric characters (or “$”, or “_”) and may not start with a digit. Reserved keywords that may not be used as parameter names are “datum”, “event”, “item”, and “parent”.

value: Option<Value>

The initial value of the parameter.

Default value: undefined

Trait Implementations

impl Clone for Parameter

fn clone(&self) -> Parameter

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Parameter

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Parameter

fn default() -> Parameter

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Parameter

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for Parameter

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>where __S: Serializer,

Serialize this value into the given Serde serializer.