JavaScript Question 14 (1 point) Which of the following is NOT true about using

Question

JavaScript

Question 14 (1 point)

Which of the following is NOT true about using Chrome's developer tools to test an application?

Question 14 options:

You can display the developer's tools by pressing F12.

The Sources panel will display a list of all runtime errors in the order they appear in your code.

You can set breakpoints to examine the contents of variables at selected points in your code.

The Watch section of the right pane allows you to enter a variable name or an expression that you want to watch.

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Question 15 (1 point)

When you test an application with Chrome’s developer tools and a breakpoint is reached, you can view the current data by

Question 15 options:

moving the mouse pointer over the name of a variable in the Sources panel

clicking in the bar to the left of a statement that uses an arithmetic expression

hovering the mouse pointer over a variable name in the Elements panel

looking up the variable in the names table in the Console panel

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Question 16 (1 point)

When you test an application with Chrome’s developer tools and a breakpoint is reached, you can click

Question 16 options:

the Continue button to continue stepping through the statements

the Step Into button to execute the current statement and move to the next statement

the Step Over button to skip execution of the next statement

the Step Out button to continue normal execution of the application

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Question 17 (1 point)

To trace the execution of a JavaScript application so you can view the results when the application ends, you would

Question 17 options:

insert console.log() method calls at key points in the code

insert source.write() method calls at key points in the code

insert alert() method calls at key points in the code

set breakpoints at key points in the code

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Question 18 (1 point)

When you view the source code for a page that’s displayed in a browser, you see

Question 18 options:

Only the initial HTML for the page.

The initial HTML for the page, along with the JavaScript if it’s stored in the HTML file.

HTML for the page that reflects changes made to the DOM by the JavaScript.

HTML that reflects changes made to the DOM by the JavaScript, along with the JavaScript if it’s stored in the HTML file.

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Question 19 (1 point)

Which of the following statements is/are true about validating HTML code for a web page?

Question 19 options:

Sometimes an HTML error will cause a JavaScript error; validating the HTML may help you pinpoint the problem.

To validate HTML code, go to the W3C Markup Validation Service.

The W3C Markup Validation Service can validate a page from a web server or by file upload.

All of the above are true.

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You can display the developer's tools by pressing F12.

The Sources panel will display a list of all runtime errors in the order they appear in your code.

You can set breakpoints to examine the contents of variables at selected points in your code.

The Watch section of the right pane allows you to enter a variable name or an expression that you want to watch.

Explanation / Answer

Answer :

Question 14

b) The Sources panel will display a list of all runtime errors in the order they appear in your code.

Question 15

a) moving the mouse pointer over the name of a variable in the Sources panel

Question 16

a) the Continue button to continue stepping through the statements

Question 17

a) insert console.log() method calls at key points in the code

Question 18

d) HTML that reflects changes made to the DOM by the JavaScript, along with the JavaScript if it’s stored in the HTML file.

Question 19

d) All of the above are true.

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