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export default function App() { | |
const diet = useSelector((state) => state.diet); | |
const dispatch = useDispatch(); | |
function handleVegToggle() { | |
dispatch({ | |
type: ACTIONS.CHANGE_DIET, | |
}); | |
} | |
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function useLoadFoodData() { | |
const [stateAPIStatus, setAPIStatus] = useState('idle'); | |
const dispatch = useDispatch(); | |
useEffect(() => { | |
setAPIStatus('loading'); | |
loadFoodData() | |
.then((data) => { | |
dispatch({ | |
type: ACTIONS.LOAD_MENU, |
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[{"name":"hackerrank_r_admin_base_layout","path":"public/assets/hackerrank_r_admin_base_layout-49646c5f27.js","size":4185,"gzipSize":1728},{"name":"hackerrank_r_advanced_settings","path":"public/assets/hackerrank_r_advanced_settings-e0275897a8.js","size":25301,"gzipSize":7100},{"name":"hackerrank_r_app","path":"public/assets/hackerrank_r_app-d1c2dd3dfc.js","size":105025,"gzipSize":31890},{"name":"hackerrank_r_auth","path":"public/assets/hackerrank_r_auth-aa2a575bfb.js","size":14519,"gzipSize":3894},{"name":"hackerrank_r_billing_settings","path":"public/assets/hackerrank_r_billing_settings-75165607d7.js","size":18635,"gzipSize":6206},{"name":"hackerrank_r_calendar","path":"public/assets/hackerrank_r_calendar-524d5417a3.js","size":9407,"gzipSize":3132},{"name":"hackerrank_r_career_fair_faq","path":"public/assets/hackerrank_r_career_fair_faq-53ecffa0d4.js","size":3500,"gzipSize":1360},{"name":"hackerrank_r_career_fair","path":"public/assets/hackerrank_r_career_fair-cbc7612c28.js","size":36356,"gzipSize":9577},{" |
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// request with url as positional arg and options as named args. | |
fetch('https://google.com', { | |
method: 'POST', | |
headers: { | |
'Content-Type': 'application/json', | |
}, | |
}); | |
// basic GET requests with just positional args | |
fetch('https://google.com'); |
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function myCustomParseInt({ item, radix } = {}) { | |
return parseInt(item, radix); | |
} |
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// positional args | |
function myCustomParseInt(item, radix) { | |
return parseInt(item, radix); | |
} | |
// old implementation of named args | |
function myCustomParseInt(objArgs) { | |
return parseInt(objArgs.item, objArgs.radix); | |
} |
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// With positional args we had to add a null in between | |
function greetPos(firstName, middleName, lastName) {} | |
greetPos('Aditya', null, 'Agarwal'); | |
// With named args you just provide firstName & lastName. | |
function greetNamed({ firstName, middleName, lastName } = {}) {} | |
greetNamed({ firstName: 'Aditya', lastName 'Agarwal' }); |
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const numbers = ['1', '4', '8', '10']; | |
const result = numbers.map((item, index) => myCustomParseInt({ item, index })); | |
console.log(result); // [ 1, 4, 8, 10 ] |
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// Implementation | |
function myCustomParseInt(objArgs) { | |
return parseInt(objArgs.item, objArgs.radix); | |
} | |
// Usage | |
const num = myCustomParseInt({ item: '100', radix: 10 }); |
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const numbers = ['1', '4', '8', '10']; | |
console.log(numbers.map(parseInt)); | |
// You might think the result would be- | |
[1, 4, 8, 10] | |
// Here's the actual output- | |
[ 1, NaN, NaN, 3 ] |