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QM Helper

0 likes • Mar 22, 2022
JavaScript
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More JavaScript Posts

Mongoose Model

JoeCamRoberon
0 likes • Mar 11, 2021
JavaScript
const mongoose = require('mongoose')
const UserSchema = new mongoose.Schema({
username: {
type: String,
required: true
},
email: {
type: String,
unique: true,
required: true
},
password: {
type: String,
required: true
},
date: {
type: Date,
default: Date.now
}
})
module.exports = User = mongoose.model('user', UserSchema)

Zybooks?

ThiccDaddyLOAF
0 likes • Oct 29, 2020
JavaScript
questions = Array.from(document.querySelectorAll(".multiple-choice-question"));
async function hackRadio(question){
if(question.querySelector(".question-chevron").getAttribute("aria-label") == "Question completed") return;
let answerChoices = question.querySelectorAll(".zb-radio-button");
async function guess(answerChoice){
answerChoice.querySelector("label").click();
}
let pause = 0;
for(let answerChoice of answerChoices){
setTimeout(()=>{guess(answerChoice)},pause); //No need to check given that it will record the correct answer anyways.
pause += 1000;
}
}
for(let question of questions){
hackRadio(question);
}
questions = Array.from(document.querySelectorAll(".short-answer-question"));
async function hackShortAnswer(question){
if(question.querySelector(".question-chevron").getAttribute("aria-label") == "Question completed") return;
question.querySelector("textarea").value = question.querySelector(".forfeit-answer").textContent;
//question.querySelector(".check-button").click(); They are smart bastards
}
for(let question of questions){
const showAnswerButton = question.querySelector(".show-answer-button");
showAnswerButton.click();
showAnswerButton.click();
hackShortAnswer(question);
}

unzipWith() function

CodeCatch
0 likes • Nov 19, 2022
JavaScript
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

CodeCatch
0 likes • Nov 19, 2022
JavaScript
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

getURLParameters

CodeCatch
0 likes • Nov 19, 2022
JavaScript
const getURLParameters = url =>
(url.match(/([^?=&]+)(=([^&]*))/g) || []).reduce(
(a, v) => (
(a[v.slice(0, v.indexOf('='))] = v.slice(v.indexOf('=') + 1)), a
),
{}
);

React Short Circuit Evaluation

JoeCamRoberon
0 likes • Feb 3, 2021
JavaScript
import React, { useState } from 'react' import Welcome from '../components/Welcome' function About() { const [showWelcome, setShowWelcome] = useState(false) return ( <div> {showWelcome ? <Welcome /> : null} </div> <div> {showWelcome && <Welcome /> } </div> ) } export default App