How does console.log() affect the performance of a webpage?
A). It improves page loading speed.
B). It has no impact on page performance.
C). It may slightly degrade performance if used excessively.
D). It optimizes JavaScript execution.
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 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.
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.
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 happens if you include console.log() statements inside a loop with a large number of iterations?
A). It has no impact on script performance.
B). It significantly slows down script execution.
C). It optimizes loop execution for faster processing.
D). It automatically optimizes console logging for loops.
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 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 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.
What does console.log() output when logging an undefined variable?
A). An empty string.
B). 'undefined'
C). null
D). An error message.