Angular CLI - ng build Command | Adglob Infosystem Pvt Ltd

In this Angular CLI ng build Command chapter explains the syntax, argument, and options of the ng build command along with an example. So all the Angular CLI ng build Command listed below-

Syntax

The syntax for ng build command is as follows −

ng build <project> [options]
ng b <project> [options]

ng build command compiles an angular application/library into an output directory named dist at the given path.

Arguments

The argument for ng build command is as follows −

Sr.No.	Argument & Syntax	Description
1	<project>	The name of the application or library to be built.

Options

Options are optional parameters.

Sr.No.	Option & Syntax	Description
1	–aot=true\|false	Build using Ahead of Time compilation. Default: false.
2	–baseHref=baseHref	Base URL for the application being built.
3	–buildEventLog=buildEventLog	The EXPERIMENTAL Output file path for Build Event Protocol events.
4	–buildOptimizer=true\|false	Enables ‘@angular-devkit/build-optimizer’ optimizations when using the ‘aot’ option.Default: false.
5	–commonChunk=true\|false	Use a separate bundle containing code used across multiple bundles. Default: false.
6	–configuration=configuration	A named build target, as specified in the “configurations” section of angular.json. Each named target is accompanied by a configuration of option defaults for that target. Setting this explicitly overrides the “–prod” flag. Aliases: -c.
7	–crossOrigin=none\|anonymous\|use-credentials	Define the crossorigin attribute setting of elements that provide CORS support.Default: none.
8	–deleteOutputPath=true\|false	Delete the output path before building. Default: true.
9	–deployUrl=deployUrl	URL where files will be deployed.
10	–experimentalRollupPass=true\|false	Concatenate modules with Rollup before bundling them with Webpack. Default: false.
11	–extractCss=true\|false	Extract css from global styles into css files instead of js ones.Default: false.
12	–extractLicenses=true\|false	Extract all licenses in a separate file.Default: false.
13	–forkTypeChecker=true\|false	Run the TypeScript type checker in a forked process.Default: true.
14	–help=true\|false\|json\|JSON	Shows a help message for this command in the console. Default: false.
15	–i18nMissingTranslation=warning\|error\|ignore	How to handle missing translations for i18n.Default: warning.
16	–index=index	Configures the generation of the application’s HTML index.
17	–localize=true\|false
18	–main=main	The full path for the main entry point to the app, relative to the current workspace.
19	–namedChunks=true\|false	Use file name for lazy loaded chunks.Default: true.
20	–ngswConfigPath=ngswConfigPath	Path to ngsw-config.json.
21	–optimization=true\|false	Enables optimization of the build output.
22	–outputHashing=none\|all\|media\|bundles	Define the output filename cache-busting hashing mode. Default: none.
23	–outputPath=outputPath	The full path for the new output directory, relative to the current workspace. By default, writes output to a folder named dist/ in the current project.
24	–poll	Enable and define the file watching poll time period in milliseconds.
25	–polyfills=polyfills	The full path for the polyfills file, relative to the current workspace.
26	–preserveSymlinks=true\|false	Do not use the real path when resolving modules. Default: false.
27	–prod=true\|false	Shorthand for “–configuration=production”. When true, sets the build configuration to the production target. By default, the production target is set up in the workspace configuration such that all builds make use of bundling, limited tree-shaking, and also limited dead code elimination.
28	–progress=true\|false	Log progress to the console while building.Default: true.
27	–resourcesOutputPath=resourcesOutputPath	The path where style resources will be placed, relative to the output path.
28	–serviceWorker=true\|false	Generates a service worker config for production builds.Default: false.
29	–showCircularDependencies=true\|false	Show circular dependency warnings on builds.Default: true.
30	–sourceMap=true\|false	Output sourcemaps.Default: true.
31	–statsJson=true\|false	Generates a ‘stats.json’ file which can be analyzed using tools such as ‘webpack-bundle-analyzer’.Default: false.
32	–subresourceIntegrity=true\|false	Enables the use of subresource integrity validation. Default: false.
33	–tsConfig=tsConfig	The full path for the TypeScript configuration file, relative to the current workspace.
34	–vendorChunk=true\|false	Use a separate bundle containing only vendor libraries. Default: true.
35	–verbose=true\|false	Adds more details to output logging.Default: true.
36	–watch=true\|false	Run build when files change.Default: false.
37	–webWorkerTsConfig=webWorkerTsConfig	TypeScript configuration for Web Worker modules.

First, move to an angular project updated using ng generate command. Replace the content of app.component.html with the following contents and then, run the command. This chapter is available at https://adglob.in/blog/angular-cli-ng-generate-command/.

<app-goals></app-goals>
<router-outlet></router-outlet>

Example

An example for ng build command is given below −

\>Node\>Adglob> ng build
Compiling @angular/animations : es2015 as esm2015
Compiling @angular/core : es2015 as esm2015
Compiling @angular/compiler/testing : es2015 as esm2015
Compiling @angular/animations/browser : es2015 as esm2015
Compiling @angular/core/testing : es2015 as esm2015
Compiling @angular/common : es2015 as esm2015
Compiling @angular/platform-browser : es2015 as esm2015
Compiling @angular/common/http : es2015 as esm2015
Compiling @angular/common/testing : es2015 as esm2015
Compiling @angular/platform-browser-dynamic : es2015 as esm2015
Compiling @angular/platform-browser/testing : es2015 as esm2015
Compiling @angular/router : es2015 as esm2015
Compiling @angular/animations/browser/testing : es2015 as esm2015
Compiling @angular/common/http/testing : es2015 as esm2015
Compiling @angular/forms : es2015 as esm2015
Compiling @angular/platform-browser/animations : es2015 as esm2015
Compiling @angular/platform-browser-dynamic/testing : es2015 as esm2015
Compiling @angular/router/testing : es2015 as esm2015
Generating ES5 bundles for differential loading...
ES5 bundle generation complete.
chunk {polyfills} polyfills-es2015.js, polyfills-es2015.js.map (polyfills) 141 kB [initial] [rendered]
chunk {runtime} runtime-es2015.js, runtime-es2015.js.map (runtime) 6.16 kB [entry] [rendered]
chunk {runtime} runtime-es5.js, runtime-es5.js.map (runtime) 6.16 kB [entry] [rendered]
chunk {styles} styles-es2015.js, styles-es2015.js.map (styles) 12.4 kB [initial] [rendered]
chunk {styles} styles-es5.js, styles-es5.js.map (styles) 13.9 kB [initial] [rendered]
chunk {main} main-es2015.js, main-es2015.js.map (main) 61.4 kB [initial] [rendered]
chunk {main} main-es5.js, main-es5.js.map (main) 65 kB [initial] [rendered]
chunk {polyfills-es5} polyfills-es5.js, polyfills-es5.js.map (polyfills-es5) 656 kB [initial] [rendered]
chunk {vendor} vendor-es2015.js, vendor-es2015.js.map (vendor) 2.67 MB [initial] [rendered]
chunk {vendor} vendor-es5.js, vendor-es5.js.map (vendor) 3.11 MB [initial] [rendered]
Date: 2020-06-04T01:31:35.612Z - Hash: d5fd9371cdc40ae353bc - Time: 210494ms

Here ng build command has built our project Adglob successfully.

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