The spread operator provides a concise syntax for expanding arrays, objects, and iterables in various contexts like function calls, array literals, and object merging. As the creator of CoreUI with extensive JavaScript experience since 2000, I’ve used the spread operator extensively for data manipulation, state updates, and component prop passing. From my expertise, the most versatile approach is using the three-dot syntax ... to expand elements in arrays, properties in objects, or arguments in functions. This ES6 feature simplifies common programming patterns while improving code readability and maintainability.

Raising numbers to powers is essential for mathematical calculations, exponential growth models, scientific computations, and implementing features like compound interest calculators or geometric progressions in JavaScript applications. With over 25 years of experience in software development and as the creator of CoreUI, I’ve implemented exponentiation extensively in components like calculators, financial tools, and data visualization features where exponential calculations are crucial for accurate mathematical operations. From my extensive expertise, the most modern and readable approach is using the ES2016 exponentiation operator (**), while Math.pow() remains a reliable alternative. Both methods provide accurate results with the operator offering cleaner syntax for modern JavaScript development.