--- title: Improve your JS skills with theses tips | daily.dev description: In this article I will share with you some tips about JS that can improve your skills in JS ! Includes method to avoid multiples checking You can easily... canonical: https://daily.dev/posts/improve-your-js-skills-with-theses-tips-bsx80crod twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Improve your JS skills with theses tips | daily.dev og:description: In this article I will share with you some tips about JS that can improve your skills in JS ! Includes method to avoid multiples checking You can easily... og:url: https://daily.dev/posts/improve-your-js-skills-with-theses-tips-bsx80crod og:image: https://api.daily.dev/og/posts/BSX80cRod.png og:image:alt: Improve your JS skills with theses tips og:image:width: 1200 og:image:height: 630 og:locale: en --- [Hashnode](https://daily.dev/sources/hashnode) [Read post](https://api.daily.dev/r/BSX80cRod) # [Improve your JS skills with theses tips](https://api.daily.dev/r/BSX80cRod "Go to post") [#javascript](/tags/javascript "Check all #javascript posts")[#career](/tags/career "Check all #career posts") Mar 15, 2021 • 2m read time • From [codeoz.hashnode.dev](https://api.daily.dev/r/BSX80cRod "codeoz.hashnode.dev") [](https://api.daily.dev/r/BSX80cRod "Go to post") Table of contents [Includes method to avoid multiples checking](https://api.daily.dev/r/BSX80cRod?a=includes-method-to-avoid-multiples-checking "Includes method to avoid multiples checking")[ Double](https://api.daily.dev/r/BSX80cRod?a=double-operator-to-convert-any-variable-into-boolean "Double")[ Optional chaining](https://api.daily.dev/r/BSX80cRod?a=optional-chaining "Optional chaining")[ Avoid Else when you return value in your if](https://api.daily.dev/r/BSX80cRod?a=avoid-else-when-you-return-value-in-your-if "Avoid Else when you return value in your if")[ Avoid ForEach, use more Filter, Map, Reduce, Every & Some function](https://api.daily.dev/r/BSX80cRod?a=avoid-foreach-use-more-filter-map-reduce-every-and-some-function "Avoid ForEach, use more Filter, Map, Reduce, Every & Some function") 62 Upvotes8 Comments Comment Bookmark Copy Share your thoughts Post [](https://daily.dev/sources/hashnode) [Hashnode](https://daily.dev/sources/hashnode "https://daily.dev/sources/hashnode") Hashnode is a community-driven platform for developers to share knowledge, ask questions, and connec... Read more 191 Followers • 14 Upvotes [](https://daily.dev/codeoz) [Thomas oz](https://daily.dev/codeoz) [@codeoz](https://daily.dev/codeoz) Joined Mar 21\. 2021 #### Would you recommend this post? Copy link WhatsApp Facebook X New Squad Copy linkShare with your friends 62 8 ```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","@type":"TechArticle","headline":"Improve your JS skills with theses tips","url":"https://daily.dev/posts/improve-your-js-skills-with-theses-tips-bsx80crod","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/improve-your-js-skills-with-theses-tips-bsx80crod"},"datePublished":"2021-03-15T08:22:21.326Z","dateModified":"2021-10-07T14:17:10.317Z","description":"In this article I will share with you some tips about JS that can improve your skills in JS !\nIncludes method to avoid multiples checking\nYou can easily...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/091c5443a47a8606df52b6e23f5914ba","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/091c5443a47a8606df52b6e23f5914ba","isAccessibleForFree":true,"articleSection":"Hashnode","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Person","name":"Thomas oz","url":"https://daily.dev/codeoz","image":"https://avatars.githubusercontent.com/u/51973428?v=4"},"commentCount":8,"discussionUrl":"https://daily.dev/posts/improve-your-js-skills-with-theses-tips-bsx80crod","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":62},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":8}],"keywords":"javascript,career","timeRequired":"PT2M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Hashnode","item":"https://daily.dev/sources/hashnode"},{"@type":"ListItem","position":3,"name":"Improve your JS skills with theses tips"}]} {"@context":"https://schema.org","@type":"WebPage","@id":"https://daily.dev/posts/improve-your-js-skills-with-theses-tips-bsx80crod","comment":[{"@type":"Comment","text":"Hey, nice article!","datePublished":"2021-03-21T09:30:00.682Z","url":"https://daily.dev/posts/BSX80cRod#c-RMxLZ2dyG","author":{"@type":"Person","name":"DevLorenzo","url":"https://daily.dev/devlorenzo","image":"https://avatars.githubusercontent.com/u/78320052?v=4"},"interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":2}},{"@type":"Comment","text":"Nice","datePublished":"2021-03-15T08:46:10.206Z","url":"https://daily.dev/posts/BSX80cRod#c-T2JP1Nc_V","author":{"@type":"Person","name":"Darshan Raval","url":"https://daily.dev/darshanraval","image":"https://media.daily.dev/image/upload/s--rEu93IO9--/f_auto,q_auto/v1696571869/avatars/avatar_I-FGo_Ret"},"interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":1}},{"@type":"Comment","text":"Awesome and useful Tips! Thanks!","datePublished":"2021-03-18T01:29:07.979Z","url":"https://daily.dev/posts/BSX80cRod#c-3_DnEmZy9","author":{"@type":"Person","name":"Samuel Barbosa","url":"https://daily.dev/5amuk","image":"https://avatars.githubusercontent.com/u/55029538?v=4"},"interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":1}},{"@type":"Comment","text":"nice tips, bro!","datePublished":"2021-03-18T20:43:51.348Z","url":"https://daily.dev/posts/BSX80cRod#c-4WFLodf2O","author":{"@type":"Person","name":"Mauro Palgi","url":"https://daily.dev/windestroy","image":"https://avatars3.githubusercontent.com/u/34563729?v=4"},"interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":1}}]} ```