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JavaScript · all questions

Invocation And Performance Navigation
practice.

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How many read-only attributes are present in the navigator object?

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Why are HTTP redirects significant?

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Where does the DNS reply go to in a single HTTP redirect?

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How can one access the redirectCount property?

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How many constant values can the property type be represented?

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Which of the following constants has the value 255?

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What is the purpose of the constant TYPE_RELOAD?

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What does the constant TYPE_BACK_FORWRD indicate?

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Which of the following constants hold the value 2?

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Where does the DNS Lookup direct to ?

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How many properties are available in a memory object?

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What is a heap in JavaScript?

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What is the function of the memory object?

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What is the command to access the Heap size limit?

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What is the purpose of garbage collection?

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What does the usedJsHeapSize property indicate?

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Which of the following property indicate the total size of heap?

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What can be done to monitor the memory usage?

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Which of the following gives the high level breakdown of memory usage?

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Which keyword must be used to get a more granular insight of the memory usage?

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