CLI

build

Command

ng build

ng b

The command can be used to build a project of type "application" or "library". When used to build a library, a different builder is invoked, and only the ts-config, configuration, poll and watch options are applied. All other options apply only to building applications.

The application builder uses the esbuild build tool, with default configuration options specified in the workspace configuration file (angular.json) or with a named alternative configuration. A "development" configuration is created by default when you use the CLI to create the project, and you can use that configuration by specifying the --configuration development.

The configuration options generally correspond to the command options. You can override individual configuration defaults by specifying the corresponding options on the command line. The command can accept option names given in dash-case. Note that in the configuration file, you must specify names in camelCase.

Some additional options can only be set through the configuration file, either by direct editing or with the ng config command. These include assets, styles, and scripts objects that provide runtime-global resources to include in the project. Resources in CSS, such as images and fonts, are automatically written and fingerprinted at the root of the output folder.

For further details, see Workspace Configuration.

Arguments

project

The name of the project to build. Can be an application or a library.

Value Typestring

Options

allowed-common-js-dependencies

A list of CommonJS or AMD packages that are allowed to be used without a build time warning. Use '*' to allow all.

Value Typearray

aot

Build using Ahead of Time compilation.

Value TypebooleanDefaulttrue

app-shell

Generates an application shell during build time.

Value Typeboolean

base-href

Base url for the application being built.

Value Typestring

browser

The full path for the browser entry point to the application, relative to the current workspace.

Value Typestring

clear-screen

Automatically clear the terminal screen during rebuilds.

Value TypebooleanDefaultfalse

conditions

Custom package resolution conditions used to resolve conditional exports/imports. Defaults to ['module', 'development'/'production']. The following special conditions are always present if the requirements are satisfied: 'default', 'import', 'require', 'browser', 'node'.

Value Typearray

configuration

Aliasc

One or more named builder configurations as a comma-separated list as specified in the "configurations" section in angular.json. The builder uses the named configurations to run the given target. For more information, see https://angular.dev/reference/configs/workspace-config#alternate-build-configurations.

Value Typestring

cross-origin

Define the crossorigin attribute setting of elements that provide CORS support.

Value TypestringAllowed Valuesanonymous, none, use-credentialsDefaultnone

define

Defines global identifiers that will be replaced with a specified constant value when found in any JavaScript or TypeScript code including libraries. The value will be used directly. String values must be put in quotes. Identifiers within Angular metadata such as Component Decorators will not be replaced.

Value Typearray

delete-output-path

Delete the output path before building.

Value TypebooleanDefaulttrue

deploy-url

Customize the base path for the URLs of resources in 'index.html' and component stylesheets. This option is only necessary for specific deployment scenarios, such as with Angular Elements or when utilizing different CDN locations.

Value Typestring

external-dependencies

Exclude the listed external dependencies from being bundled into the bundle. Instead, the created bundle relies on these dependencies to be available during runtime. Note: @foo/bar marks all paths within the @foo/bar package as external, including sub-paths like @foo/bar/baz.

Value Typearray

extract-licenses

Extract all licenses in a separate file.

Value TypebooleanDefaulttrue

help

Shows a help message for this command in the console.

Value Typeboolean

i18n-duplicate-translation

How to handle duplicate translations for i18n.

Value TypestringAllowed Valueserror, ignore, warningDefaultwarning

i18n-missing-translation

How to handle missing translations for i18n.

Value TypestringAllowed Valueserror, ignore, warningDefaultwarning

index

Configures the generation of the application's HTML index.

Value Typestring

inline-style-language

The stylesheet language to use for the application's inline component styles.

Value TypestringAllowed Valuescss, less, sass, scssDefaultcss

localize

Translate the bundles in one or more locales.

Value Typeboolean

named-chunks

Use file name for lazy loaded chunks.

Value TypebooleanDefaultfalse

optimization

Enables optimization of the build output. Including minification of scripts and styles, tree-shaking, dead-code elimination, inlining of critical CSS and fonts inlining. For more information, see https://angular.dev/reference/configs/workspace-config#optimization-configuration.

Value TypebooleanDefaulttrue

output-hashing

Define the output filename cache-busting hashing mode.

Value TypestringAllowed Valuesall, bundles, media, noneDefaultnone

output-mode

Defines the build output target. 'static': Generates a static site for deployment on any static hosting service. 'server': Produces an application designed for deployment on a server that supports server-side rendering (SSR).

Value TypestringAllowed Valuesserver, static

output-path

Specify the output path relative to workspace root.

Value Typestring

poll

Enable and define the file watching poll time period in milliseconds.

Value Typenumber

polyfills

A list of polyfills to include in the build. Can be a full path for a file, relative to the current workspace or module specifier. Example: 'zone.js'.

Value Typearray

prerender

Prerender (SSG) pages of your application during build time.

Value Typeboolean

preserve-symlinks

Do not use the real path when resolving modules. If unset then will default to true if NodeJS option --preserve-symlinks is set.

Value Typeboolean

progress

Log progress to the console while building.

Value TypebooleanDefaulttrue

server

The full path for the server entry point to the application, relative to the current workspace.

Value Typestring

service-worker

Generates a service worker configuration.

Value Typestring

source-map

Output source maps for scripts and styles. For more information, see https://angular.dev/reference/configs/workspace-config#source-map-configuration.

Value TypebooleanDefaultfalse

ssr

Server side render (SSR) pages of your application during runtime.

Value TypebooleanDefaultfalse

stats-json

Generates a 'stats.json' file which can be analyzed with https://esbuild.github.io/analyze/.

Value TypebooleanDefaultfalse

subresource-integrity

Enables the use of subresource integrity validation.

Value TypebooleanDefaultfalse

ts-config

The full path for the TypeScript configuration file, relative to the current workspace.

Value Typestring

verbose

Adds more details to output logging.

Value TypebooleanDefaultfalse

watch

Run build when files change.

Value TypebooleanDefaultfalse

web-worker-ts-config

TypeScript configuration for Web Worker modules.

Value Typestring