--- title: Best Bits and Pieces posts — October 2021 | daily.dev description: The most upvoted Bits and Pieces posts from October 2021, curated by the daily.dev community. canonical: https://daily.dev/sources/bit/best-of/2021/10 twitter:card: summary_large_image twitter:site: @dailydotdev og:url: https://daily.dev/sources/bit/best-of/2021/10 og:type: website og:site_name: daily.dev og:title: Best Bits and Pieces posts — October 2021 | daily.dev og:description: The most upvoted Bits and Pieces posts from October 2021, curated by the daily.dev community. og:image: https://media.daily.dev/image/upload/s--VAY5ToZt--/f_auto/v1724209435/public/daily.dev%20-%20open%20graph --- # Best of Bits and Pieces — October 2021 1. 1 [](https://daily.dev/posts/google-chrome-hidden-features-for-developers-0sc-uab50 "Google Chrome Hidden Features For Developers") Article Bits and Pieces · 5y Google Chrome Hidden Features For Developers Google Chrome Dev Tools is one of the most used tools among web developers. It has some amazing features that most developers are not aware of. In this article, I will discuss the top 5 Chrome DevTools experimental features every developer should try. Google Chrome Hidden Features Every Developer Should Know Google Chrome experiments you should try 205 24 2. 2 [](https://daily.dev/posts/best-practices-for-using-jwt-xu27l2tqs "Best Practices for Using JWT") Article Bits and Pieces · 5y Best Practices for Using JWT JWT tokens are widely used in applications to share security information. Still, they are not entirely foolproof and could open doors for attackers. We can avoid these shortcomings if we use JWTs correctly. In this article, I will discuss 5 best practices you need to follow when using JWT. 93 4 3. 3 [](https://daily.dev/posts/5-methods-to-reduce-javascript-bundle-size-svqrupdsy "5 Methods to Reduce JavaScript Bundle Size") Article Bits and Pieces · 5y 5 Methods to Reduce JavaScript Bundle Size 5 techniques to reduce the JavaScript bundle size to avoid any performance bottlenecks. Code splitting with Webpack allows you to separate your code into bundles and load them on-demand. Tree shaking is a technique used to eliminate dead codes, and Webpack provides several plugins to implement it. Using Alternative Libraries and Removing Duplicates helps to address performance issues easily. 79 2 4. 4 [](https://daily.dev/posts/dependency-injection-in-javascript-the-best-tool-you-re-not-using-for-your-tests-v6nbtthqz "Dependency Injection in JavaScript — the Best Tool You’re Not Using for your Tests") Article Bits and Pieces · 5y Dependency Injection in JavaScript — the Best Tool You’re Not Using for your Tests Dependency Injection in JavaScript is the Best Tool You’re Not Using for your Tests. Let me introduce you to your new testing best friend Fernando Doglio. Dependencies in your code can be anything, from a 3rd party library to the database where you save your data. 49 1 [See all Bits and Pieces archives](/sources/bit/best-of) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@graph":[{"@type":"CollectionPage","@id":"https://daily.dev/sources/bit/best-of/2021/10#page","url":"https://daily.dev/sources/bit/best-of/2021/10","name":"Best Bits and Pieces Posts — October 2021","description":"The most upvoted Bits and Pieces posts from October 2021, curated by the daily.dev community.","isPartOf":{"@type":"WebSite","url":"https://daily.dev"}},{"@type":"ItemList","@id":"https://daily.dev/sources/bit/best-of/2021/10#items","numberOfItems":4,"itemListElement":[{"@type":"ListItem","position":1,"url":"https://daily.dev/posts/google-chrome-hidden-features-for-developers-0sc-uab50","name":"Google Chrome Hidden Features For Developers"},{"@type":"ListItem","position":2,"url":"https://daily.dev/posts/best-practices-for-using-jwt-xu27l2tqs","name":"Best Practices for Using JWT"},{"@type":"ListItem","position":3,"url":"https://daily.dev/posts/5-methods-to-reduce-javascript-bundle-size-svqrupdsy","name":"5 Methods to Reduce JavaScript Bundle Size"},{"@type":"ListItem","position":4,"url":"https://daily.dev/posts/dependency-injection-in-javascript-the-best-tool-you-re-not-using-for-your-tests-v6nbtthqz","name":"Dependency Injection in JavaScript — the Best Tool You’re Not Using for your Tests"}]},{"@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Sources","item":"https://daily.dev/sources"},{"@type":"ListItem","position":3,"name":"Bits and Pieces","item":"https://daily.dev/sources/bit"},{"@type":"ListItem","position":4,"name":"Best of","item":"https://daily.dev/sources/bit/best-of"},{"@type":"ListItem","position":5,"name":"October 2021"}]}]} ```