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ScaleSequential

interface ScaleSequential <Output, Unknown = never> extends ScaleSequentialBase<Output, Unknown> {

interpolator(): (t: number) => Output;

interpolator(interpolator: (t: number) => Output): this;

interpolator<NewOutput>(interpolator: (t: number) => NewOutput): ScaleSequential<NewOutput, Unknown>;

unknown(): UnknownReturnType<Unknown, undefined>;

unknown<NewUnknown>(value: NewUnknown): ScaleSequential<Output, NewUnknown>;

}

§Type Parameters

Output

Unknown = never

§Extends

ScaleSequentialBase<Output, Unknown>

§Methods

interpolator(): (t: number) => Output

Returns the current interpolator underlying the scale.

interpolator(interpolator: (t: number) => Output): this

Sets the scale’s interpolator to the specified function.

@param interpolator

An interpolator function mapping a value from the [0, 1] interval to an output value.

interpolator<NewOutput>(interpolator: (t: number) => NewOutput): ScaleSequential<NewOutput, Unknown>

Sets the scale’s interpolator to the specified function.

The generic corresponds to a the new output type of the scale. The output type of the scale is determined by the output type of the interpolator function.

@param interpolator

An interpolator function mapping a value from the [0, 1] interval to an output value.

unknown(): UnknownReturnType<Unknown, undefined>

Returns the current unknown value, which defaults to undefined.

unknown<NewUnknown>(value: NewUnknown): ScaleSequential<Output, NewUnknown>

Sets the output value of the scale for undefined (or NaN) input values and returns this scale.

@param value

The output value of the scale for undefined (or NaN) input values.