Arrays The Array object, as with arrays in other programming languages, enables storing a collection of multiple items under a single variable name and has members for performing common array operations. Description In JavaScript, arrays aren't primitives but are instead Array objects with the following core characteristics: JavaScript arrays are resizable and can contain a mix of different data types. (When those characteristics are undesirable, use typed arrays instead.) JavaScript arrays are not associative arrays and so, array elements cannot be accessed using arbitrary strings as indexes, but must be accessed using nonnegative integers (or their respective string form) as indexes. JavaScript arrays are zero-indexed: the first element of an array is at index 0, the second is at index 1, and so on — and the last element is at the value of the array's length property minus 1. JavaScript array-copy operations create shallow copies. (All standard built-in copy operations with...
JavaScript is a high-level, prototype-based object-oriented, multiparadigm interpreted or just-in-time compiled dynamic, single-threaded garbage-collected programming language with first-class-functions clog it up just in time compiled language Our computer only understands 0s and 1s Human readable Js convert to the machine to JS Multi-paradigm Program An approach and mindset of structuring code, which will direct your coding style and technique 1. Procedural Programming 2.Oriented programming 3. Structure Arrays are in Prototypal inheritance Js is a language with first-class functions , functions are simply treated as variables . we can pass them into other functions, and return them from functions Javascript is a Dynamic language No data type definitions Types become known at runtimes The data type of the variable is automatically changed. Concurrency model How the javascript engine handles multiple tasks happening at the sa...
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