Angular 2 Online Quiz

Q 1 - Which of the following is correct about TypeScript?

A - Angular 2 is based on TypeScript.

B - This is a superset of JavaScript.

C - TypeScript is maintained by Microsoft.

D - All of the above.

Q 2 - Which of the following is true?

A - Angular 2 Service can be used to bring the modules together.

B - Angular 2 Template can be used to bring the modules together.

C - Angular 2 Component can be used to bring the modules together.

D - None of the above.

Q 3 - Which of the following is correct about Angular 2 Directive?

A - A directive is a custom HTML element that is used to extend the power of HTML.

B - A directive can be used to import the functionality from other Angular JS modules.

C - Both of the above.

D - None of the above.

Q 4 - Which of the following is correct about Angular 2 Error Handling?

A - This is done by including the ReactJS catch library and then using the catch function.

B - The catch function contains a link to the Error Handler function.

C - Both of the above.

D - None of the above.

Q 5 - Which of the following is correct about tsconfig.json?

A - The target for the compilation is generally es5 because most browsers can only understand ES5 typescript.

B - The sourceMap option is used to generate Map files, which are useful when debugging. Hence, during development it is good to keep this option as true.

C - The "emitDecoratorMetadata": true and "experimentalDecorators": true is required for Angular JS decorators. If not in place, Angular JS application will not compile.

D - All of the above.

Q 6 - Which of the following is correct about systemjs.config.json?

A - 'npm:': 'node_modules/' tells the location in our project where all the npm modules are located.

B - The mapping of app: 'app' tells the folder where all our applications files are loaded.

C - Both of the above.

D - None of the above.

Q 7 - Which of the following filter is used to convert an input string to percentage format.

A - percentage

B - percent

C - Both of the above.

D - None of the above.

Q 8 - Which of the following is correct about lifecycle hook - ngDoCheck.

A - When the value of a data bound property changes, then this method is called.

B - This is called whenever the initialization of the directive/component after Angular first displays the data-bound properties happens.

C - This is for the detection and to act on changes that Angular can't or won't detect on its own.

D - This is called in response after Angular projects external content into the component's view.

Q 9 - Which of the following is correct about lifecycle hook - ngAfterViewChecked.

A - This is called in response after Angular checks the content projected into the component.

B - This is called in response after Angular initializes the component's views and child views.

C - This is called in response after Angular checks the component's views and child views.

D - This is the cleanup phase just before Angular destroys the directive/component.