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JavaScript's evolution with ES6 introduces features that enhance development efficiency and readability. Key ES6 features include arrow functions, which provide concise syntax and lexical binding of `this`; classes, simplifying object-oriented programming; template literals, enhancing string manipulation; destructuring, simplifying value extraction; modules, improving code organization; and Promises/async-await, revolutionizing asynchronous operations. Best practices involve using `const` and `let` instead of `var` for block-scoped variables, writing modular code, maintaining consistent coding style with tools like ESLint, embracing asynchronous patterns, using arrow functions appropriately, and preferring default parameters and rest/spread operators. Mastering these features and practices enhances code quality and keeps developers ahead in modern web development.
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Unit testing is a critical practice in software development that ensures individual code units work as expected. It helps catch bugs early, simplifies refactoring, and improves code quality and reliability. Unit tests verify the smallest parts of an
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Most Javascript Questions Asked in Interview | PART 2 1. What is difference between a for loop and for Each loop Ans: A for loop is traditional loop that uses a counter variable to iterate over an array. ForEach loop is a method that iterate over a
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