How can you format log messages using console.log() to include variable values or expressions?

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.

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

A). An empty string.

B). 'undefined'

C). null

D). An error message.

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 include JavaScript expressions in console.log() messages?

A). By enclosing expressions in backticks (`) within the message string.

B). By using special symbols like %s and %d.

C). By wrapping expressions in square brackets [].

D). By assigning expressions to separate log methods.

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

A). Use separate console.log() statements for each asynchronous operation.

B). Include all asynchronous logs within a single console.log() statement.

C). Disable logging for asynchronous operations.

D). Use console.error() for all asynchronous logs.

What type of information can be logged using console.log() in JavaScript?

A). Only strings and text-based data.

B). Strings, numbers, objects, arrays, and other data types.

C). Numbers and mathematical calculations.

D). Images and multimedia content.

How is console.log() used to display variable values in the console?

A). By concatenating variables with strings.

B). By using special escape characters.

C). By including variables directly in the parentheses.

D). By using HTML tags.

How can you log formatted messages with variable values using console.log()?

A). By using special symbols like %s and %d in the message string.

B). By enclosing expressions in backticks (`) within the message.

C). By concatenating variables directly in the parentheses.

D). By assigning expressions to separate log methods.

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 purpose of using console.log() for debugging JavaScript code?

A). To optimize code execution.

B). To log errors and exceptions.

C). To display messages to users.

D). To track variables, values, and program flow.