Skills Tests - Technical
TypeScript test
The TypeScript test evaluates knowledge of its syntax, features, and its use for building scalable web applications while ensuring strong type safety and error handling.
Type: Technical
Difficulty: Standard
Duration: 10 mins
Language: English
About the TypeScript test
The TypeScript test evaluates a candidate's proficiency in using TypeScript for both front-end and back-end development. It assesses the ability to leverage TypeScript's static typing system to produce maintainable and reliable code. Key areas include understanding and effectively applying basic and advanced types, as well as familiarity with TypeScript's syntax for variable declaration, function definitions, and working with objects and arrays.
The test also explores object-oriented programming (OOP) concepts in TypeScript, including the use of classes, interfaces, and inheritance, and evaluates how well candidates use the type system to prevent errors and improve code clarity. It covers the integration of TypeScript with JavaScript, focusing on the transition from JavaScript to TypeScript, compiling, and running TypeScript code.
Additionally, the test examines TypeScript's tooling support, including modules, namespaces, and decorators, as well as the candidate's experience using TypeScript in modern frameworks like Angular, React, and Vue.js. The test evaluates how candidates maintain code quality through generics, error handling, and utilizing TypeScript features to catch bugs early in the development process. Finally, it assesses the candidate's understanding of TypeScript's role in promoting collaborative development by encouraging clearer, self-documenting code and minimizing runtime errors.
Multiple-choice test
Key skills measured
Static typing
Syntax and declarations
Functions and object manipulation
Object-oriented programming (OOP)
Generics
Error handling
JavaScript and TypeScript integration
Modules, namespaces, and decorators
Working with frameworks (Angular, React, Vue.js)
Type safety and type inference
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