21 lines
468 B
TypeScript
21 lines
468 B
TypeScript
/**
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* Converts `string`, as a whole, to upper case just like
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* [String#toUpperCase](https://mdn.io/toUpperCase).
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*
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* @param {unknown} [value=''] The value to convert.
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* @returns {string} Returns the upper cased string.
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* @example
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*
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* toUpper('--foo-bar--');
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* // => '--FOO-BAR--'
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*
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* toUpper(null);
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* // => ''
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*
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* toUpper([1, 2, 3]);
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* // => '1,2,3'
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*/
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declare function toUpper<T extends string = string>(value?: T): Uppercase<T>;
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export { toUpper };
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