What is a scope in AngularJS?

Scope acts as the glue between controller and view.

Which lifecycle method initializes AngularJS applications?

AngularJS applications are initialized using bootstrap process.

What is dependency injection in AngularJS?

Dependency Injection allows services/components to be provided automatically.

Which service shares data across controllers?

$rootScope allows global data sharing across the application.

Which directive handles click events?

ng-click executes expressions when clicked.

What is the purpose of filters in AngularJS?

Filters transform and format data in templates.

Which filter converts text to uppercase?

uppercase filter converts text into uppercase.

What does ng-app directive do?

ng-app initializes the AngularJS application.

Which AngularJS service is used for URL routing?

$routeProvider configures routes in AngularJS.

What is the purpose of ng-controller?

ng-controller connects a controller with HTML.

Interview QuestionsIntermediateFresher

Top 50 Angular JS Developer Interview Questions & Answers (2026)

This guide covers the exact questions real interviewers ask for Angular JS Developer roles. Each question includes a detailed answer, code example where relevant and a key takeaway.

Start Angular JS Readiness Test Read 50 Questions ↓

50 Questions

Covered

1 min

Read time

Free

Assessment

Instant

Score

This guide covers the exact questions real interviewers ask for Angular JS Developer roles. Each question includes a detailed answer, code example where relevant and a key takeaway.

Know your Angular JS Developer readiness before the interview

Role-specific questions · Instant scoring · 15 minutes · Free

Start Angular JS Readiness Test

AngularJS is a JavaScript framework used to build dynamic single-page web applications.

Key takeaway:Building dynamic web applications u2014 AngularJS is a JavaScript framework used to build dynamic single-page web applications.

AngularJS was developed and maintained by Google.

Key takeaway:Google u2014 AngularJS was developed and maintained by Google.

ng-model creates two-way data binding between view and model.

Key takeaway:ng-model u2014 ng-model creates two-way data binding between view and model.

AngularJS mainly follows the MVC (Model-View-Controller) architecture.

Key takeaway:MVC u2014 AngularJS mainly follows the MVC (Model-View-Controller) architecture.

AngularJS expressions are written using double curly braces.

Key takeaway:{{ }} u2014 AngularJS expressions are written using double curly braces.

ng-repeat is used for looping through collections.

Key takeaway:ng-repeat u2014 ng-repeat is used for looping through collections.

Modules in AngularJS are created using angular.module().

Key takeaway:angular.module() u2014 Modules in AngularJS are created using angular.module().

ng-if adds or removes elements based on conditions.

Key takeaway:ng-if u2014 ng-if adds or removes elements based on conditions.

Two-way data binding keeps model and UI synchronized automatically.

Key takeaway:Automatic synchronization between model and view u2014 Two-way data binding keeps model and UI synchronized automatically.

$http service is used for HTTP communication.

Key takeaway:$http u2014 $http service is used for HTTP communication.

Digest cycle watches changes and updates bindings.

Key takeaway:Process for checking model changes u2014 Digest cycle watches changes and updates bindings.

$apply() triggers digest cycle manually.

Key takeaway:$apply() u2014 $apply() triggers digest cycle manually.

Directives allow reusable custom HTML behavior.

Key takeaway:Reusable HTML component u2014 Directives allow reusable custom HTML behavior.

scope:{} creates isolated scope in directives.

Key takeaway:scope:{} u2014 scope:{} creates isolated scope in directives.

Transclusion allows embedding external content into directives.

Key takeaway:Including external HTML inside directives u2014 Transclusion allows embedding external content into directives.

ng-if modifies DOM while ng-show only toggles visibility.

Key takeaway:ng-if removes DOM elements while ng-show hides them u2014 ng-if modifies DOM while ng-show only toggles visibility.

$q service is used for promise handling.

Key takeaway:$q u2014 $q service is used for promise handling.

Lazy loading improves performance by loading resources when needed.

Key takeaway:Loading modules only when required u2014 Lazy loading improves performance by loading resources when needed.

Watchers track changes in scope variables.

Key takeaway:To monitor model changes u2014 Watchers track changes in scope variables.

$location manages browser URLs dynamically.

Key takeaway:$location u2014 $location manages browser URLs dynamically.

You have read 30 questions. Now test yourself.

Find out which ones you can actually answer under pressure and which gaps you still need to close.

Start Angular JS Readiness Test

Free · No signup · Instant results

ng-model enables two-way data binding for form fields.

Key takeaway:ng-model u2014 ng-model enables two-way data binding for form fields.

Too many watchers reduce performance; optimize bindings and one-time bindings.

Key takeaway:Reduce watchers and optimize bindings u2014 Too many watchers reduce performance; optimize bindings and one-time bindings.

Directives are used to create reusable components.

Key takeaway:Directives u2014 Directives are used to create reusable components.

Route resolve ensures data loads before view rendering.

Key takeaway:Use resolve in routing u2014 Route resolve ensures data loads before view rendering.

$rootScope can share data application-wide.

Key takeaway:$rootScope u2014 $rootScope can share data application-wide.

Currency filter formats currency values.

Key takeaway:Filters u2014 Currency filter formats currency values.

Isolated scope prevents unintended parent scope modifications.

Key takeaway:Isolated scope u2014 Isolated scope prevents unintended parent scope modifications.

$watch listens for changes in scope variables.

Key takeaway:$watch u2014 $watch listens for changes in scope variables.

Route resolve can validate authorization before navigation.

Key takeaway:Route guards using resolve u2014 Route resolve can validate authorization before navigation.

Modules organize application components logically.

Key takeaway:Modules u2014 Modules organize application components logically.

AngularJS throws an infinite digest error after max digest iterations.

Key takeaway:Infinite digest error u2014 AngularJS throws an infinite digest error after max digest iterations.

$compile compiles HTML into AngularJS templates.

Key takeaway:$compile u2014 $compile compiles HTML into AngularJS templates.

Scopes inherit prototypically from parent scopes.

Key takeaway:Inherited prototypically u2014 Scopes inherit prototypically from parent scopes.

$parse converts AngularJS expressions into executable functions.

Key takeaway:$parse u2014 $parse converts AngularJS expressions into executable functions.

One-time binding improves performance by reducing watchers.

Key takeaway:{{::value}} u2014 One-time binding improves performance by reducing watchers.

Factories create reusable services and business logic.

Key takeaway:Create reusable business logic u2014 Factories create reusable services and business logic.

Services are instantiated with new, factories return objects/functions.

Key takeaway:Service uses constructor function while factory returns object u2014 Services are instantiated with new, factories return objects/functions.

config() is used for providers and routing configuration.

Key takeaway:config() u2014 config() is used for providers and routing configuration.

Strict DI ensures dependencies are explicitly declared.

Key takeaway:Performance and minification safety u2014 Strict DI ensures dependencies are explicitly declared.

AngularJS struggles with scalability and performance in large apps.

Key takeaway:Performance issues with large applications u2014 AngularJS struggles with scalability and performance in large apps.

WATCH OUT

5 Mistakes That Cost Angular JS Developer Candidates the Job

Interviewers watch for these red flags — not just knowledge gaps.

Memorising Without Understanding

Candidates who memorise answers without understanding concepts fall apart when interviewers ask follow-up questions.

Fix: Understand the why behind every answer

No Real-World Examples Ready

Saying 'I know this' without a concrete example is a red flag. Interviewers want applied knowledge not just theory.

Fix: Prepare one real example per concept

Ignoring Edge Cases

Only answering the happy path shows shallow thinking. Interviewers test if you think about what can go wrong.

Fix: Always ask yourself what could fail

Freezing Under Pressure

Silence is worse than saying 'Let me think through this'. Composure and structured thinking matter as much as the answer.

Fix: Practice thinking aloud every day

Never Testing Their Readiness

Most candidates feel ready but have never actually measured themselves. The gap you don't know about is the most dangerous.

Fix: Take the free assessment before your interview

BEFORE YOUR NEXT INTERVIEW

Stop Guessing. Know Exactly Where You Stand in Angular JS Developer.

You have read 50 questions. Now find out which ones you can actually answer under pressure.

✓ Role-specific questions✓ Instant skill score✓ Gap analysis✓ Completely free

Start Angular JS Readiness Test

15 minutes · No signup required · Instant results

Related Guides

Top 50 UI/UX Designer Interview Questions & Answers (2026)

Read Guide →

Top 50 Angular JS Developer Interview Questions & Answers (2026)

You have read 30 questions. Now test yourself.

5 Mistakes That Cost Angular JS Developer Candidates the Job

Memorising Without Understanding

No Real-World Examples Ready

Ignoring Edge Cases

Freezing Under Pressure

Never Testing Their Readiness

Stop Guessing. Know Exactly Where You Stand in Angular JS Developer.

Related Guides

Top 50 Customer Support Interview Questions & Answers (2026)

Top 50 Web Designer Interview Questions & Answers (2026)

Top 50 UI/UX Designer Interview Questions & Answers (2026)

Assessment

Opportunities

Company

Legal

Top 50 Angular JS Developer Interview Questions & Answers (2026)

Q1What is AngularJS primarily used for?

Q2Who developed AngularJS?

Q3Which directive is used to bind data in AngularJS?

Q4What architecture pattern does AngularJS follow?

Q5Which symbol is used for AngularJS expressions?

Q6Which directive repeats HTML elements for each item in a collection?

Q7What is the extension of AngularJS module creation?

Q8Which directive conditionally removes/adds elements from DOM?

Q9What is two-way data binding?

Q10Which service is used for AJAX calls in AngularJS?

Q11What is a scope in AngularJS?

Q12Which lifecycle method initializes AngularJS applications?

Q13What is dependency injection in AngularJS?

Q14Which service shares data across controllers?

Q15Which directive handles click events?

Q16What is the purpose of filters in AngularJS?

Q17Which filter converts text to uppercase?

Q18What does ng-app directive do?

Q19Which AngularJS service is used for URL routing?

Q20What is the purpose of ng-controller?

Q21What is the digest cycle in AngularJS?

Q22What triggers a digest cycle?

Q23What is a custom directive in AngularJS?

Q24Which directive creates isolated scope?

Q25What is transclusion in AngularJS?

Q26What is the difference between ng-if and ng-show?

Q27Which service is used for promises in AngularJS?

Q28What is lazy loading in AngularJS?

Q29Why are watchers important in AngularJS?

Q30Which service changes browser URL without reloading?

You have read 30 questions. Now test yourself.

Q31A form input is not updating the model automatically. Which directive is likely missing?

Q32Your AngularJS app becomes slow due to too many watchers. What is the best solution?

Q33You need reusable UI components. What should you create?

Q34An API request must execute before page load. Which approach is best?

Q35You want to share authentication data globally. Which scope is appropriate?

Q36You need to format currency values dynamically. Which AngularJS feature should be used?

Q37A directive should not affect parent scope data. What should you use?

Q38You want to execute logic whenever a model changes. Which method helps?

Q39A route change should redirect unauthorized users. Which feature is useful?

Q40An application requires modular architecture. Which AngularJS feature supports this?

Q41What happens if too many digest cycles occur?

Q42Which method compiles HTML dynamically?

Q43What is the default scope inheritance in AngularJS?

Q44Which service parses AngularJS expressions?

Q45What is one-time binding syntax in AngularJS?

Q46What is the purpose of factory services?

Q47Difference between service and factory?

Q48Which AngularJS component handles application configuration?

Q49What does strict dependency injection improve?

Q50What is the main limitation of AngularJS compared to modern Angular?

5 Mistakes That Cost Angular JS Developer Candidates the Job

Memorising Without Understanding

No Real-World Examples Ready

Ignoring Edge Cases

Freezing Under Pressure

Never Testing Their Readiness

Stop Guessing. Know Exactly Where You Stand in Angular JS Developer.

Related Guides

Top 50 Customer Support Interview Questions & Answers (2026)

Top 50 Web Designer Interview Questions & Answers (2026)

Top 50 UI/UX Designer Interview Questions & Answers (2026)

Assessment

Opportunities

Company

Legal