Javascript - CS - CSE Questions and Answers

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Firebug can be used to inspect

HTML

CSS

DOM

All of the mentioned

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Why do Web Developers use Firebug?

Track cookies

Track sessions

Both Track cookies and sessions

None of the mentioned

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What are the goals for using Firebug?

Performance

Adaptability

Complexity

Reliability

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Which of the following is not a feature of the User Interface?

Skinnable Interface

Resizable Side Panel

Fixed Side Panel

Menu options

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What is the default value of the property overrideConsole

true

false

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Which of the following property(s) has a default value as false?

disableWhenFirebugActive

showIconWhenHidden

disableXHRListener

Both disableWhenFirebugActive & showIconWhenHidden

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Which of the following action is possible in Firebug when used as a JavaScript Debugger and Profiler?

Pause execution in any line

Find Scripts easily

Find Scripts easily & also Pause execution in any line

None of the mentioned

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The let keyword can be used

in a for or for/in loop, as a substitute for var

as a block statement, to define new variables

to define variables that are scoped to a single expression

all of the mentioned

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How does PhantonJS use YSlow?

Queries

Statements

Command Line Prompt

Command Line Script