Arrays are wonderful and a very particular type in JavaScript. There are many useful ... like summing all the values of an array or in an object array, counting for particular items in the array ...

Object is the root object of all prototypes in JavaScript. Aside from providing ... Many objects, like arrays, do define their own version. Custom objects can also define a version.

JavaScript’s arrays can hold heterogeneous types, change size on the fly, and readily insert or remove elements. Traditional methods like slice, splice, and push/pop do this by operating on the ...

JSON consists of arrays and objects, as well as names and value pairs. Punctuation used in the format includes quotations, brackets, parentheses, semicolons and colons. Data in JSON is written in name ...