Memory management refers to the process of allocating, deallocating, and managing memory in a computer system. In JavaScript, memory management is primarily handled by the JavaScript engine and the garbage collector, which automatically handle the allocation and deallocation of memory for objects and variables.
For example, when you create a new object using the {} notation or the new keyword, the JavaScript engine will automatically allocate memory for that object. Once the object is no longer being used, the garbage collector will automatically release that memory.
Another example is when you create a new variable, the JavaScript engine will allocate memory for that variable and store the value in that memory. When you reassign a variable, the engine will update the value stored in that memory location. When the variable goes out of scope and is no longer being used, the garbage collector will automatically release the memory used by that variable.
In summary, JavaScript has a garbage collector that automatically handles memory management, which means you don't have to manually allocate or deallocate memory as you would in a language like C++.