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main.js
run
preview
console
function validTime(str) {
let hour = parseInt(str.slice(0, 2));
let min = parseInt(str.slice(3, 5));
if((hour < 0 || hour > 24) || (min < 0 || min > 59)){
return false;
}
return true;
}



/**
* Test Suite
*/
describe('validTime()', () => {
it('returns true for valid time', () => {
// arrange
const str = '13:58';

// act
const result = validTime(str);

// log
console.log("result 1: ", result);

// assert
expect(result).toBe(true);
});

it('returns false when invalid hours', () => {
// arrange
const str = '25:51';

// act
const result = validTime(str);

// log
console.log("result 1: ", result);

// assert
expect(result).toBe(false);
});

it('returns false when invalid minutes', () => {
// arrange
const str = '02:76';

// act
const result = validTime(str);

// log
console.log("result 1: ", result);

// assert
expect(result).toBe(false);
});
});
Console
"result 1: "
,
true
,
"result 1: "
,
false
,
"result 1: "
,
false
,
/index.html
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