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9 lines
223 B
TypeScript
9 lines
223 B
TypeScript
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export default function capitalize<T extends string>(str: T): Capitalize<T> {
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if (typeof str !== 'string') {
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return str;
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}
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const ret = str.charAt(0).toUpperCase() + str.slice(1);
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return ret as Capitalize<T>;
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}
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