Web Reference: Basic JavaScript (40/111) | Modify Array Data With Indexes | freeCodeCampFull playlist 👉 https://www.youtube.com/watch?v=xBMb0KylHpI&list=PLH_87_56BLl12l-tU... Unlike strings, the entries of arrays are mutable and can be changed freely, even if the array was declared with const. Example. ourArray now has the value [15, 40, 30]. Note: There shouldn't be any spaces between the array name and the square brackets, like array [0]. JavaScript is easy to learn. This tutorial covers everything from basic JavaScript up to the latest 2026 version. Start learning JavaScript now » With our Try it Yourself editor, you can edit the source code and view the result. We recommend reading this tutorial, in the sequence listed in the menu.
YouTube Excerpt: Basic JavaScript
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Basic Javascript 40 111 Modify Net Worth 2026: Salary, Income & Wealth Net Worth & Biography
Estimated Worth: $33M - $40M
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Last Updated: April 6, 2026
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