Function isMathBlockEmpty

vditor/src/ts/codeBlock/codeMirrorManager.ts:140–142

(blockElement: HTMLElement)

};

export const isMathBlockEmpty = (blockElement: HTMLElement) => {
    return getMathBlockText(blockElement).trim() === "";
};

/** 空数学块默认 CodeMirror；非空且未编辑时保持预览态 */
export const syncMathBlockDisplayMode = (vditor: IVditor, blockElement: HTMLElement, focus = false) => {