When is it recommended to use document.write() in JavaScript? | JavaScript | MYTAT

Q

When is it recommended to use document.write() in JavaScript?

A). After the document has finished loading. B). Before the closing </body> tag. C). Before the document has finished loading. D). Within the <head> section.

Answer & Solution

Answer: Option Option C

Solution:

It is recommended to use document.write() before the document has finished loading, typically within the <head> section or early in the <body> section. Using document.write() after the document has loaded can lead to issues such as overwriting the entire document's content or causing delays in content rendering. Placing it before the closing </body> tag is also acceptable for dynamically generating content during page load.

Related Questions on Average

Which scenario is NOT suitable for using document.write() in JavaScript?

A). Creating a login form with validation.

B). Generating a personalized greeting message.

C). Displaying real-time data from an external API.

D). Adding event listeners to form elements.

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What happens if document.write() is used within an external script file?

A). It appends content to the end of the document.

B). It overwrites the entire content of the document.

C). It triggers an error in the browser console.

D). It inserts content into the <head> section.

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Which of the following is a limitation of using document.write() in JavaScript?

A). It cannot write HTML content.

B). It cannot write content after the document has loaded.

C). It cannot write content within specific HTML elements.

D). It cannot write content dynamically.

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How does document.write() impact the performance of a webpage?

A). It improves the performance by reducing page load times.

B). It has no impact on performance.

C). It may degrade performance due to delays in content rendering.

D). It optimizes code execution for better performance.

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Which method is commonly used as an alternative to document.write() for dynamic content generation in modern JavaScript development?

A). jQuery

B). React.js

C). AJAX requests

D). innerHTML

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Which approach should be followed when using document.write() in JavaScript for dynamic content?

A). Encapsulating JavaScript code within functions.

B). Utilizing external JavaScript libraries.

C). Including multiple document.write() statements within one script.

D). Executing document.write() before the <body> tag.

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Which method should be avoided when using document.write() in JavaScript?

A). Including multiple document.write() statements within one script.

B). Encapsulating document.write() within functions.

C). Using document.write() to generate dynamic content.

D). Executing document.write() before the <body> tag.

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Which method can be used to ensure proper document structure when using document.write() in JavaScript?

A). Using document.createElement() alongside document.write().

B). Including document.write() within external script files.

C). Combining document.write() with external CSS stylesheets.

D). Executing document.write() after the document has loaded.

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How does document.write() differ from innerHTML in JavaScript?

A). document.write() can only write plain text content.

B). document.write() can only write HTML content.

C). innerHTML can execute JavaScript code within the written content.

D). innerHTML can write content within specific HTML elements.

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How can document.write() be used to dynamically load external content in JavaScript?

A). By including external JavaScript files.

B). By embedding external content directly into the code.

C). By generating <script> tags with external sources.

D). By writing content with embedded URLs.

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