Does the organization of files and directories (such as modular programming) impact the speed at which AngularJS loads?

Question

Does the organization of files and directories (such as modular programming) impact the speed at which AngularJS loads?

Can breaking code into smaller modules help decrease loading time?

Exploring ways to modularize AngularJS applications can lead to a well-structured approach for developing large apps. This approach aims to streamline the development process by organizing files efficiently and separating re-usable components from standalone modules.

While the benefits of this approach in terms of organization are clear, it raises the question of whether it contributes to reducing loading time.

Is referencing .js files in separate .html files a way to improve loading time?

Consider this scenario: by structuring your project as shown in the Directory Structure Example provided, you may potentially decrease loading time by referencing the necessary .js files in individual .html files rather than including them all in the index.html file. For example, in the sidebarView.html file, you would include:

<script src='sidebarDirective.js'></script>

Directory Structure Example

app/
----- shared/   // reusable components or partials
---------- sidebar/
--------------- sidebarDirective.js
--------------- sidebarView.html
---------- article/
--------------- articleDirective.js
--------------- articleView.html
----- components/   // each component treated as a mini Angular app
---------- home/
--------------- homeController.js
--------------- homeService.js
--------------- homeView.html
---------- blog/
--------------- blogController.js
--------------- blogService.js
--------------- blogView.html
----- app.module.js
----- app.routes.js
assets/
----- img/      // Images and icons
----- css/      // Styles and related files
----- js/       // JavaScript files specific to your app
----- libs/     // Third-party libraries
index.html

javascript angularjs angularjs-module angularjs-model

Answer 1

Answer №1

When developing a single page application using Angularjs, it is recommended to combine and compress all JavaScript files into one and precompile all HTML views into a single file. By directly including these files in your index.html, a client only needs to make two network requests to access all the necessary code for the app to function, eliminating the need to download content when switching views.

Personally, I prefer using gulp for file building, but there are various other build systems available. Below is an example snippet from my gulpfile for handling script building:

gulp.task('scripts', function() {
  return gulp.src(scripts)
    .pipe(concat('app.js'))
    .pipe(gulp.dest('./build/scripts'))
    .pipe(refresh(lrserver));
});

gulp.task('customscripts', function() {
  return gulp.src(customscripts)
    .pipe(concat('app-custom.js'))
    .pipe(gulp.dest('./build/scripts'))
    .pipe(refresh(lrserver));
});

gulp.task('views', function() {
  return gulp.src(views)
    .pipe(minifyhtml({empty:true, spare: true, quotes: true, conditionals: true}))
    .pipe(rename(function(path) {
      path.dirname = '';
    }))    
    .pipe(html2js({moduleName: 'app', prefix: 'views/'}))
    .pipe(concat('app-views.js'))
    .pipe(gulp.dest('./build/scripts'))
    .pipe(refresh(lrserver));
});

Then, in the index.html file:

<script src="/scripts/app-custom.js"></script>
<script src="/scripts/app.js"></script>
<script src="/scripts/app-views.js"></script>

Regardless of the directory structure, utilizing a modular approach has proven to be beneficial. For larger projects, it simplifies organization and componentization.

Answer 2

When developing a single page application using Angularjs, it is recommended to combine and compress all JavaScript files into one and precompile all HTML views into a single file. By directly including these files in your index.html, a client only needs to make two network requests to access all the necessary code for the app to function, eliminating the need to download content when switching views.

Personally, I prefer using gulp for file building, but there are various other build systems available. Below is an example snippet from my gulpfile for handling script building:

gulp.task('scripts', function() {
  return gulp.src(scripts)
    .pipe(concat('app.js'))
    .pipe(gulp.dest('./build/scripts'))
    .pipe(refresh(lrserver));
});

gulp.task('customscripts', function() {
  return gulp.src(customscripts)
    .pipe(concat('app-custom.js'))
    .pipe(gulp.dest('./build/scripts'))
    .pipe(refresh(lrserver));
});

gulp.task('views', function() {
  return gulp.src(views)
    .pipe(minifyhtml({empty:true, spare: true, quotes: true, conditionals: true}))
    .pipe(rename(function(path) {
      path.dirname = '';
    }))    
    .pipe(html2js({moduleName: 'app', prefix: 'views/'}))
    .pipe(concat('app-views.js'))
    .pipe(gulp.dest('./build/scripts'))
    .pipe(refresh(lrserver));
});

Then, in the index.html file:

<script src="/scripts/app-custom.js"></script>
<script src="/scripts/app.js"></script>
<script src="/scripts/app-views.js"></script>

Regardless of the directory structure, utilizing a modular approach has proven to be beneficial. For larger projects, it simplifies organization and componentization.

Does the organization of files and directories (such as modular programming) impact the speed at which AngularJS loads?

Answer №1

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