Smiles.ai interview questions

// class Promise { // state = "pending"; // constructor() {} // resolve(fn) {} // } // const promise = new Promise(); // function debounce(fn, time) { // setTimeout(() => { // fn(); // }, time); // } // const consoleDebounce = debounce(() => console.log("Called debounce"), 1000); // for (let i = 0; i < 100; i++) { // consoleDebounce(); // } // Function Requirements: // 1. Actual Url to shorten, get a shortned url // 2. Give a shortened url and return the actual url // Non Function Requirements: // 1. 1M hits per day // 2. Expiry url - 1 month // const input = "{[]}"; // const isBalanced = (inputStr) => { // const startingBrackets = ["{", "[", "("]; // const closingBrackets = ["}", "]", ")"]; // const startCloseMapping = { // "(": ")", // "[": "]", // "{": "}", // }; // const stack = []; // for (let index = 0; index < inputStr.length; index++) { // const element = inputStr[index]; // if (startingBrackets.includes(element)) { // stack.push(element); // } else if (closingBrackets.includes(element)) { // const topElement = stack.pop(); // if (startCloseMapping[topElement] !== element) { // return false; // } // } // } // return true; // }; // console.log(isBalanced(input)); /* 1 => 2 => 3 => 4 => 5 2 => 4 */ /* counter = 5 (number of nodes) removing = 5 - 2 = 3 (substracting length - last index) = index of the node */