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Invert Binary Tree

Oct 15, 2022CodeCatch
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More JavaScript Posts

Responsive Bootstrap Card.Img

Jan 25, 2023C S

0 likes • 21 views

const ResponsiveCardImg = styled(Card.Img)`
// For screens wider than 768px
@media(min-width: 768px) {
// Your responsive styles here.
}
// For screens smaller than 768px
@media(max-width: 768px) {
// Your responsive styles here.
}
`
export default function App() {
return (
<MainContainer>
<Container>
<Card text='white' bg='dark' style={styles.mainCard}>
<ResponsiveCardImg
style={styles.cardImage}
onClick={handleClick}
src={apeImage}
alt='Degenerate Ape Academy'
/>
<Card.Body>
<Card.Title className='text-center' as='h2'>
{apeId}
</Card.Title>
</Card.Body>
</Card>
</Container>
</MainContainer>
);
}

levenshtein distance

Nov 19, 2022CodeCatch

0 likes • 1 view

const levenshteinDistance = (s, t) => {
if (!s.length) return t.length;
if (!t.length) return s.length;
const arr = [];
for (let i = 0; i <= t.length; i++) {
arr[i] = [i];
for (let j = 1; j <= s.length; j++) {
arr[i][j] =
i === 0
? j
: Math.min(
arr[i - 1][j] + 1,
arr[i][j - 1] + 1,
arr[i - 1][j - 1] + (s[j - 1] === t[i - 1] ? 0 : 1)
);
}
}
return arr[t.length][s.length];
};
levenshteinDistance('duck', 'dark'); // 2

Generate a random HEX color

Nov 18, 2022AustinLeath

0 likes • 1 view

// Or
const randomColor = () => `#${(~~(Math.random()*(1<<24))).toString(16)}`;
console.log(randomColor);

drag and drop uploader

Nov 18, 2022AustinLeath

0 likes • 0 views

const dragAndDropDiv = editor.container;
dragAndDropDiv.addEventListener('dragover', function(e) {
e.stopPropagation();
e.preventDefault();
e.dataTransfer.dropEffect = 'copy';
});
dragAndDropDiv.addEventListener("drop",function(e){
// Prevent default behavior (Prevent file from being opened)
e.stopPropagation();
e.preventDefault();
const files = e.dataTransfer.items; // Array of all files
console.assert(files.length >= 1);
if (files[0].kind === 'file') {
var file = e.dataTransfer.items[0].getAsFile();
const fileSize = file.size;
const fileName = file.name;
const fileMimeType = file.type;
reader = new FileReader();
reader.onloadend = function(){
editor.setValue(reader.result);
}
reader.readAsText(file);
}else{
//Maybe handle if text is dropped
console.log(files[0].kind);
}
});

Destructuring Assignment

Nov 19, 2022CodeCatch

0 likes • 0 views

//JavaScript program to swap two variables
//take input from the users
let a = prompt('Enter the first variable: ');
let b = prompt('Enter the second variable: ');
//using destructuring assignment
[a, b] = [b, a];
console.log(`The value of a after swapping: ${a}`);
console.log(`The value of b after swapping: ${b}`);

Truncate to fixed decimal

Nov 19, 2022CodeCatch

0 likes • 0 views

const toFixed = (n, fixed) => ~~(Math.pow(10, fixed) * n) / Math.pow(10, fixed);
// Examples
toFixed(25.198726354, 1); // 25.1
toFixed(25.198726354, 2); // 25.19
toFixed(25.198726354, 3); // 25.198
toFixed(25.198726354, 4); // 25.1987
toFixed(25.198726354, 5); // 25.19872
toFixed(25.198726354, 6); // 25.198726