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14 lines
445 B
TypeScript
14 lines
445 B
TypeScript
import type { CSSVarFunction } from "src/core/types";
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type CSSFallbackVar = `var(--${string}, ${string})`;
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/**
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* 设置 CSS 变量的回退值
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* @param cssvar `var(--${string})`
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* @param fallback
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* @returns `var(--${string}, fallback)`
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*/
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export function fallbackVar(cssvar: CSSVarFunction, fallback: string): CSSFallbackVar {
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const var_name = cssvar.replace("var(--", "").replace(")", "");
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return `var(--${var_name}, ${fallback})`;
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}
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