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22 lines
641 B
TypeScript
Executable File
22 lines
641 B
TypeScript
Executable File
// Helper for combining css classes inside components
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export type ClassName = string | string[] | ClassNameMap;
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export interface ClassNameMap {
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[className: string]: boolean | any;
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}
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export function cssNames(...args: ClassName[]): string {
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const map: ClassNameMap = {};
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args.forEach(className => {
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if (typeof className === "string" || Array.isArray(className)) {
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[].concat(className).forEach(name => map[name] = true);
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} else {
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Object.assign(map, className);
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}
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});
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return Object.entries(map)
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.filter(([_className, isActive]) => !!isActive)
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.map(([className]) => className.trim())
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.join(' ');
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}
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