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Load balancing helps us scale horizontally across an ever-increasing number of servers, but caching will enable us to make vastly better use of the resources we already have. Caches can exist at all levels in architecture. A cache is like short-term memory which has a limited amount of space. The cache is typically faster than the original data source.
Let’s talk about different approaches first.
A developing a server-side enterprise application. You must think of different clients:
It is very hard to define an architecture that supports as a set of loosely coupled, collaborating services using the Monolithic approach. Let’s imagine that you are building an e-commerce application that takes orders from customers, verifies inventory, and ships them. The application consists of several components including the StoreFrontUI, which implements the user interface, along with some backend services for checking credit, maintaining inventory and shipping orders. The application consists of a set of services.
This post covers best practices for building HTTP and RESTful APIs. Let’s start with the terms that we will use mostly:
Simulated Annealing (SA) is a probabilistic technique used for finding an approximate solution to an optimization problem. To find the optimal solution when the search space is large and we search through an enormous number of possible solutions the task can be incredibly difficult, often impossible. Even with today’s modern computing power, there are still often too many possible solutions to consider. Therefore, we often settle for something that’s close enough to optimal solution when we may be not able to find the optimal solution within a certain time.
Machine learning is a subfield of computer science where computers have the ability to learn without being explicitly programmed. List of the machine learning task:
Regression vs Classification
HTTP caching can speed up web applications. It’s standardized and well implemented in all modern browsers and results in a lower latency app and improved responsiveness.
HTTP caching occurs when an item is fully cached for faster retrieval the next time the resource is required. The browser may choose to not contact the server at all and simply use its own local copies of web resources. There are many cache headers such as “Cache-Control”, “Expires”, “Last-Modified” and “ETag”.
Regular expressions are patterns used to match character combinations in strings. In JavaScript, regular expressions are also objects. These patterns are used with the exec and test methods of RegExp, and with the match, replace, search, and split methods of String.
A regular expression pattern is composed of simple characters, such as /abc/, or a combination of simple and special characters, such as /ab*c/ or /Chapter (\d+)\.\d*/. The last example includes parentheses which are used as a memory device. The match made with this part of the pattern is remembered for later use, as described in Using Parenthesized Substring Matches.
