--- title: "Deep (@0xdeep) | Hashnode" description: "Blockchain & Fullstack Developer @Wipiway. Read the latest articles by Deep on Hashnode." url: "https://hashnode.com/@0xdeep" --- @0xdeep # Deep @0xdeep · Surat, Gujrat · Joined January 2021 Blockchain & Fullstack Developer @Wipiway [Website](https://pateldeep.xyz/) ### [5 Must-Know Features in JavaScript ES2022: Enhance Your Code and Boost Your Productivity](https://blog.pateldeep.xyz/5-must-know-features-in-javascript-es2022-enhance-your-code-and-boost-your-productivity?utm_source=hashnode&utm_medium=feed) JavaScript is constantly evolving, and the latest version, ES2022, introduces some exciting new features that can make your coding life easier and more... 5 min read · [blog.pateldeep.xyz](https://blog.pateldeep.xyz/5-must-know-features-in-javascript-es2022-enhance-your-code-and-boost-your-productivity?utm_source=hashnode&utm_medium=feed) [Jan 17, 2023](https://hashnode.com/posts/5-must-know-features-in-javascript-es2022-enhance-your-code-and-boost-your-productivity/63c61343a2c193f3b7a68299) ### [Rescue Assets From a Compromised Wallet](https://blog.pateldeep.xyz/rescue-assets-from-a-compromised-wallet?utm_source=hashnode&utm_medium=feed) How to rescue your tokens from a compromised Ethereum wallet by using the power of Flashbots. 4 min read · [blog.pateldeep.xyz](https://blog.pateldeep.xyz/rescue-assets-from-a-compromised-wallet?utm_source=hashnode&utm_medium=feed) [Jan 10, 2023](https://hashnode.com/posts/rescue-assets-from-a-compromised-wallet/63bd7f34f2baa6a5452ebb3c) ### [Authenticate Users in Your DApp with Sign in with Ethereum: A Step-by-Step Guide](https://blog.pateldeep.xyz/authenticate-users-in-your-dapp-with-sign-in-with-ethereum-a-step-by-step-guide?utm_source=hashnode&utm_medium=feed) How to Connect Your DApp with a Backend Using Sign in with Ethereum 9 min read · [blog.pateldeep.xyz](https://blog.pateldeep.xyz/authenticate-users-in-your-dapp-with-sign-in-with-ethereum-a-step-by-step-guide?utm_source=hashnode&utm_medium=feed) [Dec 21, 2022](https://hashnode.com/posts/authenticate-users-in-your-dapp-with-sign-in-with-ethereum-a-step-by-step-guide/63a332deb3e4146e8cea96bf) ### [How to Develop and Deploy Smart Contracts with Foundry & Openzeppelin](https://blog.developerdao.com/how-to-develop-and-deploy-smart-contracts-with-foundry-openzeppelin?utm_source=hashnode&utm_medium=feed) Getting started with Foundry by developing, testing, deploying, and verifying your smart contracts with Foundry 4 min read · [blog.developerdao.com](https://blog.developerdao.com/how-to-develop-and-deploy-smart-contracts-with-foundry-openzeppelin?utm_source=hashnode&utm_medium=feed) [Nov 29, 2022](https://hashnode.com/posts/how-to-develop-and-deploy-smart-contracts-with-foundry-openzeppelin/6386234cee88c238d96fbdd6) ### [What is the !! (not not) operator in JavaScript?](https://blog.pateldeep.xyz/what-is-the-not-not-operator-in-javascript?utm_source=hashnode&utm_medium=feed) Converts Object to boolean. If it was falsey (e.g. 0, null, undefined, etc.), it will be false, otherwise, true. !oObject // inverted boolean !!oObject // non inverted boolean so true boolean Representation So !! is not an operator, it's just the !... 1 min read · [blog.pateldeep.xyz](https://blog.pateldeep.xyz/what-is-the-not-not-operator-in-javascript?utm_source=hashnode&utm_medium=feed) [1](https://hashnode.com/posts/what-is-the-not-not-operator-in-javascript/60200cf4636acc2a3822fd93) [Feb 7, 2021](https://hashnode.com/posts/what-is-the-not-not-operator-in-javascript/60200cf4636acc2a3822fd93)