An array comes with properties and methods we can use in our programming to accomplish tasks with our array data.
There are times we wish to know how many items are in our array. We can do this with the length property. For example…
let baseballCards = [ ‘Aaron’, ‘Ruth’, ‘Wagner’ ];
console.log( baseballCards.length );The aforementioned code will output the number 3 for the number of values within the array.
Happy Coding!
Clay Hess
Use the Device Memory API to bucket users by RAM and serve right‑sized images and effects. It’s a coarse, privacy‑friendly hint for progressive enhancement.
The Document Object Model (DOM) is the browser’s in-memory representation of your HTML, letting JavaScript select elements (querySelector), listen to events (addEventListener), update content (textContent), toggle styles (classList), and create/insert nodes (createElement, insertAdjacentElement). With it, a button can change a box’s text, toggle a highlight class, set a data attribute, or insert a new paragraph right after the box—no page reload required—illustrating the simple flow: select, listen, update.
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