Q
What is the recommended approach for logging asynchronous operations using console.log()?

Answer & Solution

Answer: Option Option A
Solution:
The recommended approach for logging asynchronous operations using console.log() is to use separate console.log() statements for each asynchronous operation. Since asynchronous operations may have varying execution times and order, logging them separately ensures that each operation's output is captured and displayed correctly in the console. Including all asynchronous logs within a single console.log() statement may not provide clear visibility or accurate sequencing of asynchronous events, while disabling logging or using console.error() for all asynchronous logs is not suitable for general logging and monitoring of asynchronous operations. It is best to log asynchronous operations individually for better tracking and debugging of asynchronous code in JavaScript.
Related Questions on Average

Which statement accurately describes the behavior of console.log() in JavaScript?

A). It halts script execution until the log is displayed.

B). It continues script execution while logging to the console.

C). It executes in parallel with other statements in the script.

D). It pauses script execution while logging to the console.

What does console.log() output when logging an undefined variable?

A). An empty string.

B). 'undefined'

C). null

D). An error message.

Which method can be used to log warning messages in JavaScript?

A). console.debug()

B). console.info()

C). console.warn()

D). console.error()

What is the recommended approach for handling console logs in production code?

A). Disable all console logs in production code.

B). Include detailed console logs for all scenarios.

C). Use conditional logging and minimize excessive logging.

D). Log all errors and exceptions using console.error().

How does console.log() handle logging complex data structures like objects or arrays?

A). It prints the memory address of the data structure.

B). It converts objects and arrays into readable string representations.

C). It displays an error message for complex data structures.

D). It ignores complex data structures and logs a warning.

How can you log messages with different log levels using console.log()?

A). By using conditional statements to differentiate log levels.

B). By passing a log level as an argument to console.log().

C). By using multiple console.log() methods with different names.

D). By including log level prefixes in the message strings.

How can you improve the readability of log messages in console.log()?

A). By including detailed error messages.

B). By using clear and descriptive message content.

C). By logging messages in reverse order.

D). By including HTML tags for styling.

How can you log multiple values or messages using console.log()?

A). By using separate console.log() statements for each value.

B). By concatenating values within the parentheses.

C). By using HTML tags in the message string.

D). By separating values with commas within the parentheses.

What is the behavior of console.log() when logging null or empty values?

A). It logs an empty string for null values and does not log empty values.

B). It logs 'null' or 'undefined' for null or empty values, respectively.

C). It ignores null or empty values and logs the rest of the message.

D). It displays an error message for null or empty values.

How does console.log() impact the accessibility of a webpage?

A). It improves accessibility by providing interactive elements.

B). It has no impact on accessibility.

C). It may negatively impact accessibility for users with disabilities.

D). It optimizes page performance for accessibility features.