Mastering JavaScript's 7 primitive data types - Number, String, Boolean, Null, Undefined, Symbol, and BigInt - is crucial for full-stack development. Each has unique characteristics affecting storage, manipulation, and performance optimization in JavaScript applications.
Mastering assignment operators in JavaScript simplifies code, improves performance, and enhances readability by reducing the number of operations. The most commonly used ones are `=`, `+=`, `-=` , `*=` , `/=` . By using them effectively, developers can write more efficient, concise, and readable code.
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