JavaScript Basics:
Arrays, Functions & Callbacks: Here is a quick recap of some fundamental JavaScript concepts I revised today: 1.Array Length (.length): mark.length gives the total size (number of elements) in an array. 2.Mixed Data Types in Arrays: JavaScript arrays can store different types of data together: const ar = [10, 20, 30, "abc", true]; 3.The .filter() Method: numbers.filter(display) numbers ➔ Array…
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