Q
How can you include JavaScript expressions in console.log() messages?

Answer & Solution

Answer: Option Option A
Solution:
You can include JavaScript expressions in console.log() messages by enclosing the expressions in backticks () within the message string to create template literals. Template literals allow for the interpolation of JavaScript expressions, variables, and values directly within the message string. For example, console.log(The result is ${result});will log 'The result is' followed by the value of theresultvariable to the console. Using special symbols, square brackets, or separate log methods is not necessary for including JavaScript expressions inconsole.log()` messages, as template literals provide a concise and readable way to incorporate dynamic content in log messages.
Related Questions on Average

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 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.

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

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.

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.

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.

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.

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.

What is the primary purpose of console.log() in JavaScript?

A). To display messages on the webpage.

B). To log information to the browser's console.

C). To prompt user input.

D). To create interactive elements.

How does console.log() handle logging objects with nested properties?

A). It prints only the top-level properties of the object.

B). It converts the object and all nested properties into string representations.

C). It displays an error message for objects with nested properties.

D). It ignores nested properties and logs the object structure only.