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feat(curriculum): create javascript fundamentals quiz (#56565)
This commit is contained in:
Abhishek Khatri
@@ -17,439 +17,439 @@ Answer all of the questions below correctly to pass the quiz.
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#### --text--
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Placeholder question
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What are default parameters?
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#### --distractors--
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Placeholder distractor 1
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Parameters that should always be present in a function
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---
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Placeholder distractor 2
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Parameters that are passed in an array
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---
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Placeholder distractor 3
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Parameters that are destructured from an object
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#### --answer--
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Placeholder answer
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Parameters that are optional and have a default value when not provided
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### --question--
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#### --text--
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Placeholder question
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What is the correct syntax for a default parameter in JavaScript?
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#### --distractors--
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Placeholder distractor 1
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`function myFunction(param1 == defaultValue)`
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---
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Placeholder distractor 2
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`function myFunction(param1: defaultValue)`
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---
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Placeholder distractor 3
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`function myFunction(param1 || defaultValue)`
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#### --answer--
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Placeholder answer
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`function myFunction(param1 = defaultValue)`
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### --question--
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#### --text--
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Placeholder question
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What does the rest parameter syntax allow you to do in JavaScript?
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#### --distractors--
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Placeholder distractor 1
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Pass parameters by reference
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---
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Placeholder distractor 2
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Provide a set default parameters
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---
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Placeholder distractor 3
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Destructure an object into parameters
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#### --answer--
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Placeholder answer
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Capture all arguments into one array
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### --question--
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#### --text--
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Placeholder question
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Which of the following is the correct syntax for the rest parameter in JavaScript?
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#### --distractors--
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Placeholder distractor 1
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`function myFunction(restParams)`
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---
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Placeholder distractor 2
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`function myFunction(restParams...)`
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---
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Placeholder distractor 3
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`function myFunction([...restParams])`
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#### --answer--
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Placeholder answer
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`function myFunction(...restParams)`
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### --question--
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#### --text--
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Placeholder question
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What does destructuring allows you to do in JavaScript?
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#### --distractors--
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Placeholder distractor 1
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Build complex objects
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---
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Placeholder distractor 2
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Serialize objects
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---
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Placeholder distractor 3
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Merge arrays or objects
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#### --answer--
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Placeholder answer
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Extract properties from objects and elements from arrays
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### --question--
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#### --text--
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Placeholder question
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Which of the following is a valid function name in JavaScript?
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#### --distractors--
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Placeholder distractor 1
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`123function`
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---
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Placeholder distractor 2
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`function-name`
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---
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Placeholder distractor 3
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`function`
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#### --answer--
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Placeholder answer
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`functionName`
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### --question--
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#### --text--
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Placeholder question
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Which of these is NOT a good practice for naming variables and functions in JavaScript?
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#### --distractors--
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Placeholder distractor 1
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Use camelCase notation
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---
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Placeholder distractor 2
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Start variable names with a letter, $ or _
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---
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Placeholder distractor 3
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Using meaningful names
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#### --answer--
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Placeholder answer
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Using reserved keywords as variable names
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### --question--
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#### --text--
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Placeholder question
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What is the primary purpose of a linter in JavaScript development?
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#### --distractors--
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Placeholder distractor 1
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To format code automatically
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---
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Placeholder distractor 2
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To optimize code for performance
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---
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Placeholder distractor 3
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To create documentation for code
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#### --answer--
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Placeholder answer
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To detect potential errors and style issues in code
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### --question--
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#### --text--
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Placeholder question
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Which of the following is NOT a linter for JavaScript?
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#### --distractors--
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Placeholder distractor 1
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ESLint
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---
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Placeholder distractor 2
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standardJS
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---
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Placeholder distractor 3
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quick-lint-js
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#### --answer--
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Placeholder answer
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Babel
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### --question--
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#### --text--
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Placeholder question
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Which of these describes accessibility?
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#### --distractors--
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Placeholder distractor 1
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Making sure code is accessible to other developers
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---
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Placeholder distractor 2
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Writing secure code
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---
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Placeholder distractor 3
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Controlling who can access certain data
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#### --answer--
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Placeholder answer
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Using events wisely to avoid locking out specific control types (keyboard, touchscreen users)
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### --question--
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#### --text--
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Placeholder question
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Why is using the `var` keyword considered bad practice in modern JavaScript?
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#### --distractors--
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Placeholder distractor 1
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It's slower than `let` and `const`
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---
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Placeholder distractor 2
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It causes a syntax error
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---
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Placeholder distractor 3
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It doesn't allow type checking
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#### --answer--
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Placeholder answer
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It has function scope instead of block scope, which can lead to unexpected behaviors
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### --question--
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#### --text--
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Placeholder question
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In JavaScript, how is memory for variables typically allocated?
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#### --distractors--
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Placeholder distractor 1
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Manually by the developer
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---
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Placeholder distractor 2
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By the browser
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---
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Placeholder distractor 3
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By the server
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#### --answer--
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Placeholder answer
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Automatically by the runtime engine
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### --question--
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#### --text--
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Placeholder question
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What is hoisting in JavaScript?
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#### --distractors--
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Placeholder distractor 1
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Raising errors to the top of the code
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---
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Placeholder distractor 2
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The process of creating new variables
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---
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Placeholder distractor 3
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Automatically moving `var` declarations to the top of the block
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#### --answer--
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Placeholder answer
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The process of moving variable declarations to the top of their scope
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### --question--
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#### --text--
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Placeholder question
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What is the purpose of modules in JavaScript?
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#### --distractors--
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Placeholder distractor 1
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To improve code performance
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---
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Placeholder distractor 2
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To make code more difficult to understand
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---
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Placeholder distractor 3
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To create new programming languages
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#### --answer--
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Placeholder answer
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To organize code into reusable units
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### --question--
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#### --text--
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Placeholder question
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In the context of JavaScript modules, what does `export` do?
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#### --distractors--
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Placeholder distractor 1
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Save the code to disk
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---
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Placeholder distractor 2
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Include external libraries in your code
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---
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Placeholder distractor 3
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Publish your code to a public repository
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#### --answer--
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Placeholder answer
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Make variables, functions or classes available to be imported by other modules
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### --question--
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#### --text--
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Placeholder question
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Which of these is NOT a valid way to declare a variable in JavaScript?
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#### --distractors--
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Placeholder distractor 1
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`var myVariable = 'test'`
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---
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Placeholder distractor 2
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`let myVariable = 'test'`
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---
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Placeholder distractor 3
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`const myVariable = 'test'`
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#### --answer--
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Placeholder answer
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`variable myVariable = 'test'`
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### --question--
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#### --text--
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Placeholder question
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In the context of JavaScript memory management, what are memory leaks?
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#### --distractors--
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Placeholder distractor 1
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Oversized memory use
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---
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Placeholder distractor 2
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Coding errors leading to application crashes
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---
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Placeholder distractor 3
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Part of the garbage collection process
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#### --answer--
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Placeholder answer
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Memory allocations which are never properly made unreachable
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### --question--
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#### --text--
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Placeholder question
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What is the main difference between `import` and `require` in JavaScript?
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#### --distractors--
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Placeholder distractor 1
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`import` is used in Node.js, while `require` is used in the browser
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---
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Placeholder distractor 2
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`import` supports asynchronous loading, while `require` does not
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---
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Placeholder distractor 3
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`import` is used for CSS and image files, while `require` is used for JavaScript files
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#### --answer--
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Placeholder answer
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`import` is part of ES6 syntax, while `require` is an older module loading syntax
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### --question--
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#### --text--
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Placeholder question
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What does `let` provide that `var` does not?
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#### --distractors--
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Placeholder distractor 1
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Global scope
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---
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Placeholder distractor 2
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Read-only variables
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---
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Placeholder distractor 3
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Unlimited re-declaration
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#### --answer--
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Placeholder answer
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Block scope
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### --question--
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#### --text--
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Placeholder question
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What is the purpose of a module bundler like Webpack or Rollup?
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#### --distractors--
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Placeholder distractor 1
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To optimize code for performance
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---
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Placeholder distractor 2
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It translates JavaScript code into machine language
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---
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Placeholder distractor 3
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To format code automatically
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#### --answer--
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Placeholder answer
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To combine multiple JavaScript modules into a single file
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Block a user