Copy pageCopy pageCopy this page as Markdown for LLMsView as MarkdownView this page as plain textOpen in ClaudeAsk questions about this pageOpen in ChatGPTAsk questions about this pageOn this pageSVGMaskElement-1SVGMaskElement: {(): SVGMaskElement; prototype: SVGMaskElement;}; Type Declaration Returns SVGMaskElement prototype prototype: SVGMaskElement;