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All Upper 1 solution in Uncategorized category for All Upper I by Elena_Korljukova
import assert from "assert";
function isAllUpper(text: string): boolean {
return 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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June 10, 2020