What are the different data types in JavaScript?
An example of an AI chatbot conversation about JavaScript data types.
What are the different data types in JavaScript?
JavaScript has several data types, including primitive types like string, number, boolean, null, undefined, and symbol, as well as complex types like objects.
Can you explain the difference between null and undefined?
Sure! 'null' is an intentional absence of any value, while 'undefined' means a variable has been declared but not assigned a value.
What is a symbol in JavaScript?
A symbol is a unique and immutable primitive value that can be used as a key for object properties, ensuring that property keys are unique.
How do I check the data type of a variable?
You can use the 'typeof' operator to check the data type of a variable. For example, 'typeof myVariable' will return the type.
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