Function isSpecialPreviewBlock

vditor/src/ts/codeBlock/codeMirrorManager.ts:99–101

(blockElement: HTMLElement | null)

};

export const isSpecialPreviewBlock = (blockElement: HTMLElement | null) => {
    return isSpecialBlock(blockElement) && !blockElement?.classList.contains(CM_EDITING_CLASS);
};

export const isMathBlockElement = (blockElement: HTMLElement | null) => {
    return blockElement?.getAttribute("data-type") === "math-block";