2021-12-06 21:26:14 +05:30
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/**
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* @function upper
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* @description Will convert the entire string to uppercase letters.
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2022-03-05 15:10:39 +06:00
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* @param {String} str - The input string
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* @return {String} Uppercase string
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* @example upper("hello") => HELLO
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* @example upper("He_llo") => HE_LLO
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*/
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const upper = (str) => {
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if (typeof str !== 'string') {
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throw new TypeError('Argument should be string')
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}
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2023-10-03 23:08:19 +02:00
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return str.replace(/[a-z]/g, (char) =>
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String.fromCharCode(char.charCodeAt() - 32)
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)
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2021-12-06 21:26:14 +05:30
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}
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2022-03-28 15:29:21 +06:00
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export default upper
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