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copyString.js

Nov 8, 2023LeifMessinger
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stripe api json iteration

Nov 18, 2022AustinLeath

0 likes • 1 view

var arr = [{
"success": true,
"data": [
{
"id": "ipi_1KrrbvDOiB2klwsKhuqUWqt1",
"object": "issuing.transaction",
"amount": -2743,
"amount_details": {
"atm_fee": null
},
"authorization": "iauth_1KrrbuDOiB2klwsKoFjQZhhd",
"balance_transaction": "txn_1KrrbwDOiB2klwsK1YkjJJRi",
"card": "ic_1Krqe5DOiB2klwsK44a35eiE",
"cardholder": "ich_1KrqL8DOiB2klwsKtBnZhzYr",
"created": 1650753567,
"currency": "usd",
"dispute": null,
"livemode": false,
"merchant_amount": -2743,
"merchant_currency": "usd",
"merchant_data": {
"category": "advertising_services",
"category_code": "7311",
"city": "San Francisco",
"country": "US",
"name": "Aeros Marketing, LLC",
"network_id": "1234567890",
"postal_code": "94103",
"state": "CA"
},
"metadata": {},
"type": "capture",
"wallet": null
},
{
"id": "ipi_1Krrbvc62B2klwsKhuqUWqt1",
"object": "issuing.transaction",
"amount": -9999,
"amount_details": {
"atm_fee": null
},
"authorization": "iauth_1KrrbuDOiB2klwsKoFjQZhhd",
"balance_transaction": "txn_1KrrbwDOiB2klwsK1YkjJJRi",
"card": "ic_1Krqe5DOiB2klwsK44a35eiE",
"cardholder": "ich_1KrqL8DOiB2klwsKtBnZhzYr",
"created": 1650753567,
"currency": "USD",
"dispute": null,
"livemode": false,
"merchant_amount": -9999,
"merchant_currency": "usd",
"merchant_data": {
"category": "fast_food",
"category_code": "7311",
"city": "San Francisco",
"country": "US",
"name": "Aeros Marketing, LLC",
"network_id": "1234567890",
"postal_code": "94103",
"state": "CA"
},
"metadata": {},
"type": "capture",
"wallet": null
}
]
}];
const reduced = arr.reduce((prev, curr) => {
prev.push({
amount: curr.data[0].merchant_amount,
id: curr.data[0].id,
currency: curr.data[0].currency,
category: curr.data[0].merchant_data.category
});
console.log(prev)
return prev;
}, []);

hamming distance

Nov 19, 2022CodeCatch

0 likes • 0 views

const hammingDistance = (num1, num2) =>
((num1 ^ num2).toString(2).match(/1/g) || '').length;
hammingDistance(2, 3); // 1

native data structures

Nov 19, 2022CodeCatch

0 likes • 0 views

const nums = [1, 2, 3];
const strs = Array.from('est');
nums.push(6);
nums.push(4, 9);
strs.unshift('t');
nums.length; // 6
nums[nums.length - 1]; // 9
strs[0]; // 't'
strs[2]; // 's'
nums.slice(1, 3); // [2, 3]
nums.map(n => n * 2); // [2, 4, 6, 12, 8, 18]
nums.filter(n => n % 2 === 0); // [2, 6, 4]
nums.reduce((a, n) => a + n, 0); // 25
strs.reverse(); // ['t', 's', 'e', 't']
strs.join(''); // 'test'
const nums = new Set([1, 2, 3]);
nums.add(4);
nums.add(1);
nums.add(5);
nums.add(4);
nums.size; // 5
nums.has(4); // true
nums.delete(4);
nums.has(4); // false
[...nums]; // [1, 2, 3, 5]
nums.clear();
nums.size; // 0
const items = new Map([
[1, { name: 'John' }],
[2, { name: 'Mary' }]
]);
items.set(4, { name: 'Alan' });
items.set(2, { name: 'Jeff' });
items.size; // 3
items.has(4); // true
items.get(2); // { name: 'Jeff' }
items.delete(2);
items.size; // 2
[...items.keys()]; // [1, 4]
[...items.values()]; // [{ name: 'John' }, { name: 'Alan' }]
items.clear();
items.size; // 0

unzipWith() function

Nov 19, 2022CodeCatch

0 likes • 0 views

const unzipWith = (arr, fn) =>
arr
.reduce(
(acc, val) => (val.forEach((v, i) => acc[i].push(v)), acc),
Array.from({
length: Math.max(...arr.map(x => x.length))
}).map(x => [])
)
.map(val => fn(...val));
unzipWith(
[
[1, 10, 100],
[2, 20, 200],
],
(...args) => args.reduce((acc, v) => acc + v, 0)
);
// [3, 30, 300]

greatest common denominator

Nov 19, 2022CodeCatch

0 likes • 0 views

const gcd = (...arr) => {
const _gcd = (x, y) => (!y ? x : gcd(y, x % y));
return [...arr].reduce((a, b) => _gcd(a, b));
};
gcd(8, 36); // 4
gcd(...[12, 8, 32]); // 4

Mee6 Spam Calculator

Mar 10, 2022LeifMessinger

0 likes • 1 view

//Use at https://mee6.xyz/leaderboard/732262089447702588
//Higher the spammy stat, the more spammy that person is.
//This is because mee doesn't give experience to people who post more comments in a minute.
function statBlock(title, value){
let elm = document.createElement("div");
elm.className = "leaderboardPlayerStatBlock";
let titleElm = document.createElement("div");
titleElm.className = "leaderboardPlayerStatName";
titleElm.textContent = title;
let valueElm = document.createElement("div");
valueElm.className = "leaderboardPlayerStatValue";
valueElm.textContent = value;
elm.appendChild(titleElm);
elm.appendChild(valueElm);
elm.remove = function(){
this.parentElement.removeChild(this);
}
return elm;
}
for(let player of Array.from(document.getElementsByClassName("leaderboardPlayer"))){
if(player.spamminess) player.spamminess.remove();
let messages = null;
let experience = null;
const statBlockArray = Array.from(player.querySelectorAll(".leaderboardPlayerStatBlock"));
for(let statBlock of statBlockArray){
const statName = statBlock.querySelector(".leaderboardPlayerStatName").textContent;
const text = statBlock.querySelector(".leaderboardPlayerStatValue").textContent;
const number = ((text.includes("k"))? (text.replace("k","") * 1000.0) : +(text));
if(statName.includes("MESSAGES")){
messages = number;
}else if(statName.includes("EXPERIENCE")){
experience = number;
}
}
const stats = player.querySelector(".leaderboardPlayerStats");
const messagesElement = stats.firstChild;
const spamminess = ((messages/experience)*2000.0).toFixed(2);
player.spamminess = stats.insertBefore(statBlock("SPAMMINESS", spamminess), messagesElement);
}