Memory Life Cycle

Memory Life Cycle

Irrespective of the programming language, the memory life cycle follows the following stages:...

JavaScript engines have two places to store data

Stack: It is a data structure used to store static data. Static data refers to data whose size is known by the engine during compile time. In JavaScript, static data includes primitive values like strings, numbers, boolean, null, and undefined. References that point to objects and functions are also included. A fixed amount of memory is allocated for static data. This process is known as static memory allocation. Heap: It is used to store objects and functions in JavaScript. The engine doesn’t allocate a fixed amount of memory. Instead, it allocates more space as required....

Garbage Collection

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Mark-and-sweep algorithm

Garbage collectors are used in releasing memory. Once the engine recognizes that a variable, object, or function is not needed anymore, it releases the memory it occupied. The main issue here is that it is very difficult to predict accurately whether a particular variable, object, or function is needed anymore or not. Some algorithms help to find the moment when they become obsolete with great precision....