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In JavaScript, variables are fundamental building blocks. With the introduction of ES6, developers gained more options – let and const – alongside the traditional var. Understanding the distinctions between these declarations is crucial for writing clean, efficient, and bug-free code. Regardless of whether you are new to programming or not, knowing how var, let, and const operate can help you avoid a lot of common mistakes and write better JavaScript.

The explosion of AI-native applications is upon us. With each new week, massive innovations are being made in how AI-centric applications are being built. There are a variety of tools developers need to consider, be it supplying live contextual data via the Model Context Protocol (MCP) or leveraging the new Agent2Agent Protocol (A2A) to standardize how their agentic applications will communicate. The modern AI application can include communication between many different entities, including.

Within the realms of microservices and distributed systems, gRPC has emerged as a cornerstone technology. Its adoption by tech giants like Google, Netflix, and Square underscores its capability to facilitate high-performance, scalable inter-service communication. Built as a modern take on the traditional Remote Procedure Call (RPC) paradigm, gRPC enables services, potentially written in different languages, to communicate efficiently and reliably across networks.

In the SaaS world, providers must offer tenant isolations for their customers and their data. This is a key requirement when offering services at scale. At Kong, we've invested a lot of time to provide a scalable and seamless approach for developers to avoid introducing breaches in our systems. In this article, we'll explore the challenges of tenant scoping and how we address them effectively.