merge: Add Upper (#862)

This commit is contained in:
YATIN KATHURIA
2021-12-06 21:26:14 +05:30
committed by GitHub
parent 4c27e1534e
commit 43515a646b
2 changed files with 37 additions and 0 deletions

28
String/Upper.js Normal file
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/**
* @function upper
* @description Will convert the entire string to uppercase letters.
* @param {String} url - The input URL string
* @return {String} Uppercase string
* @example upper("hello") => HELLO
* @example upper("He_llo") => HE_LLO
*/
const upper = (str) => {
if (typeof str !== 'string') {
throw new TypeError('Invalid Input Type')
}
let upperString = ''
for (const char of str) {
let asciiCode = char.charCodeAt(0)
if (asciiCode >= 97 && asciiCode <= 122) {
asciiCode -= 32
}
upperString += String.fromCharCode(asciiCode)
}
return upperString
}
export { upper }

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import { upper } from '../Upper'
describe('Upper', () => {
it('return uppercase strings', () => {
expect(upper('hello')).toBe('HELLO')
expect(upper('WORLD')).toBe('WORLD')
expect(upper('hello_WORLD')).toBe('HELLO_WORLD')
})
})