Trivia questions and answers, drawn fresh from the well

• Easy Easy difficulty.
• Internet Slang

What does 'BRB' mean in online chat?

Answer

Be Right Back

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• Easy Easy difficulty.
• Internet Slang

What does the acronym 'LOL' stand for?

Answer

Laugh Out Loud

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• Hard Hard difficulty.
• Javascript

Which operator introduced in ES2020 returns the right-hand operand if the left is null or undefined?

Answer

??

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• Intermediate Intermediate difficulty.
• Javascript

Which method prevents an event from propagating to parent elements?

Answer

stopPropagation

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• Easy Easy difficulty.
• Javascript

What file extension is used for JavaScript files?

Answer

.js

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• Hard Hard difficulty.
• Javascript

What is the value of Number.MAX_SAFE_INTEGER?

Answer

9007199254740991

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• Hard Hard difficulty.
• Javascript

Which built-in object in Node.js is used to handle binary data?

Answer

Buffer

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• Hard Hard difficulty.
• Javascript

What is the bit width of the JavaScript Number type?

Answer

64 bits

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• Hard Hard difficulty.
• Javascript

What is the name of the interpreter in the V8 JavaScript engine?

Answer

Ignition

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• Intermediate Intermediate difficulty.
• Javascript

Which Math method returns the smallest integer greater than or equal to a number?

Answer

Math.ceil()

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• Intermediate Intermediate difficulty.
• Javascript

Which keyword is used to declare a block-scoped variable that can be reassigned?

Answer

let

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• Intermediate Intermediate difficulty.
• Javascript

What is the name of the attribute used to define a non-enumerable property in Object.defineProperty?

Answer

enumerable

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