Function tickValue

packages/sanddance/src/expression.ts:17–24

(axis: VegaDeckGl.types.Axis, i: number)

}

function tickValue(axis: VegaDeckGl.types.Axis, i: number) {
    const tick = axis.tickText[i];
    let value: SearchExpressionValue;
    if (tick) {
        value = axis.tickText[i].value;
    }
    return { tick, value };
}

export function selectNullOrEmpty(column: Column) {
    const searchExpression: SearchExpression = {