While you can pick up the very basics of JavaScript in a day, becoming truly good at it takes much longer. Think of it like ...

Topics covered include: Object creation Bracket vs Dot Notation Property descriptors How object references work Prototype chain Modern syntax like spread and destructuring Loop over objects Custom ...

JavaScript variables hold a wide variety of information and can be used with virtually any data type. Here's how to use variables to store numbers, text strings, objects, and more.

Developers use statements to control the overall program flow, including variable declarations, conditional operations, and iterative processes. Here's how to write JavaScript statements.

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When returning a user-defined object, a new JS object is always instantiated to hold the corresponding native object. In my opinion car.brand === car.brand could be false, as the getter returns a ...

The returned value of the `updateUser` function is the `user` object, which means that the value of updatedUser is a reference to the same `user` object that `user` points to. `updatedUser === user` ...