Q. What is the default value of an uninitialized JavaScript variable?

अप्रारंभीकृत JavaScript वैरिएबल का डिफ़ॉल्ट मान क्या है?

A
null
B
undefined
C
Zero
D
NaN

Explanation

Explanation will be available soon. Please stay tuned.

व्याख्या जल्द ही उपलब्ध होगी। कृपया बने रहें।

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Introduction of JavaScript JSON, Iterators, and Generators Numbers, Strings, Arrays, and Functions Modules and Regular Expressions Syntax, Variables, Values, Data Types

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