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All Upper I solution in Clear category for All Upper I by Atadolfo
import assert from "assert";
var isAllUpper =(text: string): boolean => text === text.toUpperCase();
console.log('Example:');
console.log(isAllUpper('ALL UPPER'));
// These "asserts" are used for self-checking
assert.equal(isAllUpper('ALL UPPER'), true);
assert.equal(isAllUpper('all lower'), false);
assert.equal(isAllUpper('mixed UPPER and lower'), false);
assert.equal(isAllUpper(''), true);
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April 23, 2020
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