Function conditionalHeader

packages/sanddance/src/headers.ts:13–21

(condition: boolean, element: HTMLElement, header: string)

}

function conditionalHeader(condition: boolean, element: HTMLElement, header: string) {
    const existing = existingHeader(element, header);
    if (condition && !existing) {
        addHeader(element, header);
    }
    if (!condition && existing) {
        existing.remove();
    }
}

function addHeader(element: HTMLElement, header: string) {
    const h = document.createElement('h4');