Complex DataTypes in JS

Collections

Objects and arrays are ‘complex’ data-types in JavaScript. Objects and arrays are mutable meaning that they can be accessed and changed after being created. JavaScript collections can be of indeterminant size.

What's the Difference?

Objects are collections of data made of unordered properties. These properties are made of a value assigned to a key. A key need to be a string, however a value can be any data-type.

Arrays are collections of data made of values assigned …

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