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The snippet that has to be used to check if “a” is not equal to “null” is _________ (a) if(a!=null) (b) if (!a) (c) if(a!null) (d) if(a!==null) I got this question in semester exam. My enquiry is from Types, Values and Variables in section Lexical Structures of JavaScript Select the correct answer from above options JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

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Correct option is (d) if(a!==null) To explain: A strict comparison (e.g., ===) is only true if the operands are of the same type and the contents match. The more commonly-used abstract comparison (e.g. ==) converts the operands to the same type before making the comparison. The not-equal operator !== compares 0 to null and evaluates to either true or false.

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