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empty an array with javascript itsmycode skip to content itsmycode home courses full stack web development front end web development ux ui immersive course digital marketing corporate training faqs blog contact us empty an array with javascript february 14 2026 categories how to javascript empty an array with javascript is the common task which every developer performs most of the developers use the wrong approach of emptying the array in js method 1 empty an existing array in javascript creating an array in javascript var names jack rob bill wrong way of emptying array in javascript names this is the easiest way to empty an array but it s not the optimal way to do it this is perfect if you don t have references to the original array the best way to empty an array is to set the length property to 0 method 2 empty an array using javascript the right way to empty an array is to set the array length to 0 this is the optimal and fastest way to clear an array check out the below example for clearing the array in a right way creating an array using javascript var names jack rob bill right way of emptying array in javascript names length 0 another approach is to use array splice method which works perfectly some developers say this has performance issues since it returns the copy of the array which is been removed the actual benchmark suggests there are no performance issues with this approach method 3 remove all the elements from an existing array using array splice method array splice method works perfectly and it is another easiest way to empty an array all you need to give the start index as 0 and the delete count as array length check out the below example of removing all the elements from an array creating an array in javascript var names jack rob bill right way of emptying array in javascript names splice 0 names length related posts how to generate a random string of a given length in python how to fix keyerror in pandas how to rename columns in pandas dataframe how to get column names in pandas dataframe python list length how to find length of list in python check if string is empty or not in python search search popular post what it s like to be black in tech who learns to code part time at itsmycode what is conversational ux categories basics built in methods business c c career clojure date and time django erlang errors and exception files and folders git haskell health how to java javascript leadership list methods node js numpy pandas powershell python r ruby on rails rust scipy seaborn sitecore start up string methods technology tutorials ui ux design itsmycode start your career with premier training in programming software development web development ux ui digital marketing and more apply today quick links homepage job support careers blog about us contact us privacy policy cookie policy programs digital marketing course ux ui immersive course full stack web development course front end web development course corporate training contact us monday friday 8 00 a m 5 00 p m admin itsmycode com 2026 itsmycode all rights reserved
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