---
title: Quiz with Instant Results
product: Form Library
description: Allow students to get immediate feedback on each answer they give. Create a custom quiz or test and add the correctAnswer property to each question to ensure instant answer validation. View free demo for JavaScript to learn more.
framework: Angular
source: https://surveyjs.io/form-library/examples/create-quiz-with-immediate-results/angular
index: https://surveyjs.io/form-library/examples/overview.md
---

# Quiz with Instant Results (Angular)

Online quizzes are a great way to engage your students and test their knowledge on a particular topic. With SurveyJS, you can create multiple [online assessment forms](https://surveyjs.io/form-library/examples/make-quiz-javascript/reactjs), add timing and [scoring](https://surveyjs.io/form-library/examples/create-a-scored-survey/reactjs), customize their appearance, and give personalized feedback to each student once they have completed a test or right after they answered a question. This demo shows how to create an assessment test that displays instant results. Learners can see whether their answer is correct or incorrect immediately after they give it.

## Create a Regular Quiz

For your assessment test, you can leverage all available questions types: single- or multiple-choice questions, true/false questions, fill-in-the-blanks questions, and many more. Specify the [`correctAnswer`](https://surveyjs.io/form-library/documentation/api-reference/question#correctAnswer) property for each question. For detailed instructions on how to make a quiz in JavaScript, refer to the following help topic: [Create a Quiz](https://surveyjs.io/form-library/documentation/design-survey/create-a-quiz).

## Display Results Immediately

To display the response result, check whether a question was answered correctly by calling a question's [`isAnswerCorrect()`](https://surveyjs.io/form-library/documentation/api-reference/question#isAnswerCorrect) method and show the check result. Handle the survey's [`onValueChanged`](https://surveyjs.io/form-library/documentation/api-reference/survey-data-model#onValueChanged) event to perform these actions immediately after a question value is set. In this demo, "Correct" and "Incorrect" labels indicate correct and incorrect answers. These labels are added to [question titles](https://surveyjs.io/form-library/documentation/api-reference/question#title) (see the `changeTitle` function).

You should also disallow users to change their answer. Configure a question's [`enableIf`](https://surveyjs.io/form-library/documentation/api-reference/question#enableIf) expression to disable the question after it is answered.

Optionally, you can handle the survey's [`onTextMarkdown`](https://surveyjs.io/form-library/documentation/api-reference/survey-data-model#onTextMarkdown) event to format the correct/incorrect label text with HTML and CSS.

## Files

### `src/app/components/json.ts`

```ts
export const json = {
  "title": "American History",
  "showProgressBar": true,
  "progressBarLocation": "bottom",
  "showTimer": true,
  "timeLimitPerPage": 10,
  "timeLimit": 25,
  "firstPageIsStartPage": true,
  "startSurveyText": "Start Quiz",
  "pages": [
    {
      "elements": [
        {
          "type": "html",
          "html": "You are about to start a quiz on American history. <br>You will have 10 seconds for every question and 25 seconds to end the quiz.<br>Enter your name below and click <b>Start Quiz</b> to begin."
        },
        {
          "type": "text",
          "name": "username",
          "titleLocation": "hidden",
          "isRequired": true,
          "maxLength": 25
        }
      ]
    },
    {
      "elements": [
        {
          "type": "radiogroup",
          "name": "civilwar",
          "title": "When was the American Civil War?",
          "choices": [
            "1796-1803",
            "1810-1814",
            "1861-1865",
            "1939-1945"
          ],
          "correctAnswer": "1861-1865",
          "enableIf": "{civilwar} empty"
        }
      ]
    },
    {
      "elements": [
        {
          "type": "radiogroup",
          "name": "libertyordeath",
          "title": "Whose quote is this: \"Give me liberty, or give me death\"?",
          "choicesOrder": "random",
          "choices": [
            "John Hancock",
            "James Madison",
            "Patrick Henry",
            "Samuel Adams"
          ],
          "correctAnswer": "Patrick Henry",
          "enableIf": "{libertyordeath} empty"
        }
      ]
    },
    {
      "elements": [
        {
          "type": "radiogroup",
          "name": "magnacarta",
          "title": "What is Magna Carta?",
          "choicesOrder": "random",
          "choices": [
            "The foundation of the British parliamentary system",
            "The Great Seal of the monarchs of England",
            "The French Declaration of the Rights of Man",
            "The charter signed by the Pilgrims on the Mayflower"
          ],
          "correctAnswer": "The foundation of the British parliamentary system",
          "enableIf": "{magnacarta} empty"
        }
      ]
    }
  ],
  "completedHtml": "<h4>You got <b>{correctAnswers}</b> out of <b>{questionCount}</b> correct answers.</h4>",
  "completedHtmlOnCondition": [
    {
      "expression": "{correctAnswers} == 0",
      "html": "<h4>Unfortunately, none of your answers is correct. Please try again.</h4>"
    },
    {
      "expression": "{correctAnswers} == {questionCount}",
      "html": "<h4>Congratulations! You answered all the questions correctly!</h4>"
    }
  ]
};
```

### `src/app/components/survey.component.css`

```css
.correctAnswer {
    color: #00613D;
    text-transform: uppercase;
}
.incorrectAnswer {
    color: #9C0227;
    text-transform: uppercase;
}
.sd-element__title.sd-element__title--disabled {
    opacity: 1;
}
```

### `src/app/components/survey.component.html`

```html
<survey [model]="model" style="position: absolute; top: 0; left: 0; right: 0; bottom: 0; height:100%"></survey>
```

### `src/app/components/survey.component.ts`

```ts
import { Component, OnInit } from "@angular/core";
import { Model } from "survey-core";
import { json } from "./json";
import "./survey.component.css";
import "survey-core/survey-core.min.css";

@Component({
    // tslint:disable-next-line:component-selector
    selector: "component-survey",
    templateUrl: "./survey.component.html",
    styleUrls: ["./survey.component.css"]
})
export class SurveyComponent implements OnInit {
    model: Model;
    ngOnInit() {
        const survey = new Model(json);
        const correctStr = "Correct";
        const incorrectStr = "Incorrect";
        
        // Builds an HTML string to display in a question title
        function getTextHtml (text, str, isCorrect) {
            if (text.indexOf(str) < 0)
                return undefined;
        
            return text.substring(0, text.indexOf(str)) +
                "<span class='" +  (isCorrect ? "correctAnswer" : "incorrectAnswer" ) + "'>" +
                    str +
                "</span>";
        }
        
        // Adds "Correct" or "Incorrect" to a question title
        function changeTitle (q) {
            if (!q) return;
        
            const isCorrect = q.isAnswerCorrect();
            if (!q.prevTitle) {
                q.prevTitle = q.title;
            }
            if (isCorrect === undefined) {
                q.title = q.prevTitle;
            }
            q.title =  q.prevTitle + ' ' + (isCorrect ? correctStr : incorrectStr);
        }
        
        survey.onValueChanged.add((_, options) => {
            // Change the quesion title when the question value is changed
            changeTitle(options.question);
        });
        
        survey.onTextMarkdown.add((_, options) => {
            const text = options.text;
            let html = getTextHtml(text, correctStr, true);
            if (!html) {
                html = getTextHtml(text, incorrectStr, false);
            }
            if (!!html) {
                // Set an HTML string with the "Correct" or "Incorrect" suffix for display
                options.html = html;
            }
        });
        survey.onComplete.add((sender, options) => {
            console.log(JSON.stringify(sender.data, null, 3));
        });
        this.model = survey;
    }
}
```

### `src/app/components/theme.ts`

```ts
export const themeJson = {};
```

### `src/app/app.component.css`

```css

```

### `src/app/app.component.html`

```html
<component-survey></component-survey>
```

### `src/app/app.component.ts`

```ts
import { Component } from "@angular/core";

@Component({
    selector: "app-root",
    templateUrl: "./app.component.html",
    styleUrls: ["./app.component.css"]
})
export class AppComponent {
    title = "CodeSandbox";
}
```

### `src/app/app.module.ts`

```ts
import { BrowserModule } from "@angular/platform-browser";
import { NgModule } from "@angular/core";

import { AppComponent } from "./app.component";
import { SurveyModule } from "survey-angular-ui";
import { SurveyComponent } from "./components/survey.component";

@NgModule({
    declarations: [AppComponent, SurveyComponent],
    imports: [BrowserModule, SurveyModule],
    providers: [],
    bootstrap: [AppComponent]
})
export class AppModule { }
```

### `src/environments/environment.prod.ts`

```ts
export const environment = {
    production: true
};
```

### `src/environments/environment.ts`

```ts
// The file contents for the current environment will overwrite these during build.
// The build system defaults to the dev environment which uses `environment.ts`, but if you do
// `ng build --env=prod` then `environment.prod.ts` will be used instead.
// The list of which env maps to which file can be found in `.angular-cli.json`.

export const environment = {
    production: false
};
```

### `src/index.html`

```html
<app-root></app-root>
```

### `src/main.ts`

```ts
import { enableProdMode } from "@angular/core";
import { platformBrowserDynamic } from "@angular/platform-browser-dynamic";

import { AppModule } from "./app/app.module";
import { environment } from "./environments/environment";

if (environment.production) {
    enableProdMode();
}

platformBrowserDynamic()
    .bootstrapModule(AppModule)
    .catch(err => console.log(err));
```

### `src/polyfills.ts`

```ts
/**
 * This file includes polyfills needed by Angular and is loaded before the app.
 * You can add your own extra polyfills to this file.
 *
 * This file is divided into 2 sections:
 *   1. Browser polyfills. These are applied before loading ZoneJS and are sorted by browsers.
 *   2. Application imports. Files imported after ZoneJS that should be loaded before your main
 *      file.
 *
 * The current setup is for so-called "evergreen" browsers; the last versions of browsers that
 * automatically update themselves. This includes Safari >= 10, Chrome >= 55 (including Opera),
 * Edge >= 13 on the desktop, and iOS 10 and Chrome on mobile.
 *
 * Learn more in https://angular.io/docs/ts/latest/guide/browser-support.html
 */

/***************************************************************************************************
 * BROWSER POLYFILLS
 */

/** IE9, IE10 and IE11 requires all of the following polyfills. **/
// import 'core-js/es6/symbol';
// import 'core-js/es6/object';
// import 'core-js/es6/function';
// import 'core-js/es6/parse-int';
// import 'core-js/es6/parse-float';
// import 'core-js/es6/number';
// import 'core-js/es6/math';
// import 'core-js/es6/string';
// import 'core-js/es6/date';
// import 'core-js/es6/array';
// import 'core-js/es6/regexp';
// import 'core-js/es6/map';
// import 'core-js/es6/weak-map';
// import 'core-js/es6/set';

/** IE10 and IE11 requires the following for NgClass support on SVG elements */
// import 'classlist.js';  // Run `npm install classlist.js`.

/** IE10 and IE11 requires the following for the Reflect API. */
// import 'core-js/es6/reflect';

/** Evergreen browsers require these. **/
// Used for reflect-metadata in JIT. If you use AOT (and only Angular decorators), you can remove.
import "core-js/proposals/reflect-metadata";

/**
 * Required to support Web Animations `@angular/platform-browser/animations`.
 * Needed for: All but Chrome, Firefox and Opera. http://caniuse.com/#feat=web-animation
 **/
// import 'web-animations-js';  // Run `npm install web-animations-js`.

/***************************************************************************************************
 * Zone JS is required by default for Angular itself.
 */
import "zone.js/dist/zone"; // Included with Angular CLI.

/***************************************************************************************************
 * APPLICATION IMPORTS
 */
```

### `src/styles.css`

```css
.correctAnswer {
    color: #00613D;
    text-transform: uppercase;
}
.incorrectAnswer {
    color: #9C0227;
    text-transform: uppercase;
}
.sd-element__title.sd-element__title--disabled {
    opacity: 1;
}
```

### `src/typings.d.ts`

```ts
/* SystemJS module definition */
declare var module: NodeModule;
interface NodeModule {
    id: string;
}
```

### `.angular-cli.json`

```json
{
  "apps": [
    {
      "root": "src",
      "outDir": "dist",
      "assets": [ "assets", "favicon.ico" ],
      "index": "index.html",
      "main": "main.ts",
      "polyfills": "polyfills.ts",
      "prefix": "app",
      "styles": [ "styles.css" ],
      "scripts": [ ],
      "environmentSource": "environments/environment.ts",
      "environments": {
        "dev": "environments/environment.ts",
        "prod": "environments/environment.prod.ts"
      }
    }
  ]
}
```

### `_tsconfig.json`

```json
{
  "compileOnSave": false,
  "compilerOptions": {
    "baseUrl": "./",
    "outDir": "./dist/out-tsc",
    "sourceMap": true,
    "declaration": false,
    "allowSyntheticDefaultImports": true,
    "downlevelIteration": true,
    "experimentalDecorators": true,
    "moduleResolution": "node",
    "importHelpers": true,
    "resolveJsonModule": true,
    "target": "es2015",
    "module": "es2020",
    "lib": [
      "es2018",
      "dom"
    ]
  }
}
```

### `package.json`

```json
{
  "name": "surveyjs-angular",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build --prod",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "14.1.1",
    "@angular/cdk": "14.1.1",
    "@angular/common": "14.1.1",
    "@angular/compiler": "14.1.1",
    "@angular/core": "14.1.1",
    "@angular/forms": "14.1.1",
    "@angular/platform-browser": "14.1.1",
    "@angular/platform-browser-dynamic": "14.1.1",
    "@angular/router": "14.1.1",
    "core-js": "3.6.4",
    "rxjs": "6.5.4",
    "survey-core": "latest",
    "survey-angular-ui": "latest",
    "tslib": "1.13.0",
    "zone.js": "0.11.7"
  },
  "devDependencies": {
    "@angular/cli": "1.6.6",
    "@angular/compiler-cli": "^5.2.0",
    "@angular/language-service": "^5.2.0",
    "@types/core-js": "0.9.46",
    "@types/jasmine": "~2.8.3",
    "@types/jasminewd2": "~2.0.2",
    "@types/node": "~6.0.60",
    "codelyzer": "^4.0.1",
    "jasmine-core": "~2.8.0",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "~2.0.0",
    "karma-chrome-launcher": "~2.2.0",
    "karma-coverage-istanbul-reporter": "^1.2.1",
    "karma-jasmine": "~1.1.0",
    "karma-jasmine-html-reporter": "^0.2.2",
    "protractor": "~5.1.2",
    "ts-node": "~4.1.0",
    "tslint": "~5.9.1",
    "typescript": "3.9.7"
  },
  "keywords": [ "angular", "surveyjs" ],
  "description": "SurveyJS-Angular example project"
}
```

## Other Frameworks

- [React](https://surveyjs.io/form-library/examples/create-quiz-with-immediate-results/reactjs.md)
- [Vue 3](https://surveyjs.io/form-library/examples/create-quiz-with-immediate-results/vue3js.md)
- [jQuery](https://surveyjs.io/form-library/examples/create-quiz-with-immediate-results/jquery.md)
- [Vanilla JS](https://surveyjs.io/form-library/examples/create-quiz-with-immediate-results/vanillajs.md)