Reverse a string
0 likes • Nov 19, 2022 • 1 view
JavaScript
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/*** @param {number[]} nums* @param {number} target* @return {number[]}*/var twoSum = function(nums, target) {for(let i = 0; i < nums.length; i++) {for(let j = 0; j < nums.length; j++) {if(nums[i] + nums[j] === target && i !== j) {return [i, j]}}}};
// promisify(f, true) to get array of resultsfunction promisify(f, manyArgs = false) {return function (...args) {return new Promise((resolve, reject) => {function callback(err, ...results) { // our custom callback for fif (err) {reject(err);} else {// resolve with all callback results if manyArgs is specifiedresolve(manyArgs ? results : results[0]);}}args.push(callback);f.call(this, ...args);});};}// usage:f = promisify(f, true);f(...).then(arrayOfResults => ..., err => ...);
const getTimezone = () => Intl.DateTimeFormat().resolvedOptions().timeZone;// ExamplegetTimezone();
// `arr` is an arrayconst clone = arr => arr.slice(0);// Orconst clone = arr => [...arr];// Orconst clone = arr => Array.from(arr);// Orconst clone = arr => arr.map(x => x);// Orconst clone = arr => JSON.parse(JSON.stringify(arr));// Orconst clone = arr => arr.concat([]);
require("dotenv").config();const mongoose = require("mongoose");const db = process.env.MONGO_URI;const connectDB = async () => {try {await mongoose.connect(db, {useNewUrlParser: true,useUnifiedTopology: true,useFindAndModify: false,useCreateIndex: true});console.log("MongoDB Connected");} catch (err) {console.error(err.message);}};module.exports = connectDB;
let variableSet = JSON.parse('["parent","opener","top","length","frames","closed","location","self","window","document","name","customElements","history","locationbar","menubar","personalbar","scrollbars","statusbar","toolbar","status","frameElement","navigator","origin","external","screen","innerWidth","innerHeight","scrollX","pageXOffset","scrollY","pageYOffset","visualViewport","screenX","screenY","outerWidth","outerHeight","devicePixelRatio","clientInformation","screenLeft","screenTop","defaultStatus","defaultstatus","styleMedia","onsearch",&qu...find","webkitRequestAnimationFrame","webkitCancelAnimationFrame","fetch","btoa","atob","setTimeout","clearTimeout","setInterval","clearInterval","createImageBitmap","close","focus","blur","postMessage","onappinstalled","onbeforeinstallprompt","crypto","indexedDB","webkitStorageInfo","sessionStorage","localStorage","chrome","onpointerrawupdate","speechSynthesis","webkitRequestFileSystem","webkitResolveLocalFileSystemURL","openDatabase","variableSet","TEMPORARY","PERSISTENT","addEventListener","removeEventListener","dispatchEvent"]');let answer = [];for(let v in this) if(!variableSet.includes(v)) answer.push(v);console.log(answer);