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| Section | Weight | Objectives |
|---|---|---|
| Server-Side JavaScript | 8% | - Command-line tools and scripts - Core Node.js modules - Node.js fundamentals and runtime - Module system and require/import |
| Debugging and Error Handling | 7% | - Debugging tools and breakpoints - Error types and exception handling - Defensive programming practices - Console methods and logging |
| Variables, Types, and Collections | 23% | - Working with strings, numbers, dates, and booleans - Type coercion and conversion rules - Variable declaration and initialization - Array methods and data manipulation - JSON parsing and usage - Truthy and falsy values |
| Testing | 7% | - Test doubles and mocks - Testing frameworks and assertions - Unit testing concepts - Code coverage and best practices |
| Asynchronous Programming | 13% | - Callbacks and callback hell - Promises and chaining - Fetch API and HTTP requests - Event loop and micro/macro tasks - Async/await syntax |
| Browsers and Events | 17% | - Browser APIs and Web Storage - Script loading and execution order - Event handling, propagation, and delegation - Window and document object properties - Document Object Model (DOM) manipulation |
| Objects, Functions, and Classes | 25% | - Function definitions, parameters, and scope - Modules and imports/exports - Closures and execution context - Class syntax, inheritance, and prototypes - Decorators and advanced function patterns - Object creation, properties, and methods |
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NEW QUESTION # 24
Given the code below:
What is logged to the console?
Answer: A
NEW QUESTION # 25
Refer to the code below:
Line 05 causes an error.
What are the values of greeting and salutation once code completes?
Answer: B
NEW QUESTION # 26
Refer to the code below:
Let searchString = ' Look for this ';
Which two options remove the whitespace from the beginning of searchString? Choose 2 answers
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