<ul><li>JavaScript is a dynamically typed language, allowing variables to hold values of any data type.</li><li>Careful handling of type checking and conversion is required, especially with user inputs and API responses.</li><li>The Number() function can convert string numbers into numeric values. Non-pure numeric strings result in NaN (Not-a-Number).</li><li>Null is treated as a falsy value and converts to 0, while undefined becomes NaN when converted into a number.</li></ul>

Understanding Type Conversion and Type Checking in JavaScript

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