Angular - Services and Dependency InjectionWhy do Angular apps use services instead of putting all code inside components?ATo make components load slowerBTo share data and logic across components easilyCTo avoid using TypeScriptDTo write more HTML codeCheck Answer
Step-by-Step SolutionSolution:Step 1: Understand the role of servicesServices hold shared data and logic that multiple components can use.Step 2: Compare with componentsComponents focus on showing the UI, not on sharing data or logic.Final Answer:To share data and logic across components easily -> Option BQuick Check:Services share data and logic = A [OK]Quick Trick: Services share logic, components show UI [OK]Common Mistakes:MISTAKESThinking services slow down the appBelieving services replace HTMLConfusing services with components
Master "Services and Dependency Injection" in Angular9 interactive learning modes - each teaches the same concept differentlyLearnWhyDeepVisualTryChallengeProjectRecallPerf
More Angular Quizzes HTTP Client - Setting headers and params - Quiz 11easy Reactive Forms - FormControl basics - Quiz 14medium Reactive Forms - Validators (required, minLength, pattern) - Quiz 5medium Routing - Query parameters and fragments - Quiz 8hard RxJS Operators - combineLatest and forkJoin for combining - Quiz 11easy RxJS Operators - tap operator for side effects - Quiz 7medium Services and Dependency Injection - Service scope (root, module, component) - Quiz 13medium Services and Dependency Injection - Service scope (root, module, component) - Quiz 8hard Template-Driven Forms - Showing validation errors - Quiz 4medium Template-Driven Forms - Form submission handling - Quiz 5medium