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How many properties are there in window.performance object? (a) 1 (b) 4 (c) 2 (d) 3 The question was asked during an interview for a job. This is a very interesting question from Integrating the Performance Object with perfLogger in chapter Invocation and Performance Navigation 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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The correct choice is (c) 2 Easy explanation: The Window interface’s performance property returns a Performance object, which can be used to gather performance information about the current document. There are totally 2 properties associated with the window.performance and they are: navigation type.

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