Function ensureColumn

packages/sanddance-explorer/src/columns.ts:35–43

(role: SandDance.specs.InsightColumnRoles, quantitative?: boolean, treemap?: boolean)

    const firstQuantitative = nonInternal.filter(c => c.quantitative)[0];
    const firstQuantitativeColumnName = firstQuantitative && firstQuantitative.name;
    const ensureColumn = (role: SandDance.specs.InsightColumnRoles, quantitative?: boolean, treemap?: boolean) => {
        if (!insightColumns[role]) {
            if (treemap) {
                insightColumns[role] = getTreemapColumn(actualColumns).name;
            } else {
                insightColumns[role] = quantitative ? firstQuantitativeColumnName : firstColumnName;
            }
        }
    };
    function checkRequiresSize() {
        switch (totalStyle) {
            case 'sum-strip':