How to create a new component in Angular 4 using CLI

In angular 2 I use

ng g c componentname 

But It is not supported in Angular 4, so I created it manually, but it shows error that it is not a module.

25 Answers

In Angular4 this will work the same. If you get an error I think your problem is somewhere else.

In command prompt type

ng generate component YOURCOMPONENTNAME

There are even shorthands for this: the commands generate can be used as g and component as c:

ng g c YOURCOMPONENTNAME

you can use ng --help, ng g --help or ng g c --help for the docs.

Ofcourse rename YOURCOMPONENTNAME to the name you would like to use.

Docs: angular-cli will add reference to components, directives and pipes automatically in the app.module.ts.

Update: This still functions in Angular version 8.

Generating and serving an Angular project via a development server -

First go to your Project Directory and the type the below -

ng new my-app cd my-app ng generate component User (or) ng g c user ng serve 

Here “D:\Angular\my-app>” is my Angular application Project Directory and the “User” is the name of component.

The commonds looks like -

D:\Angular\my-app>ng g component User create src/app/user/user.component.html (23 bytes) create src/app/user/user.component.spec.ts (614 bytes) create src/app/user/user.component.ts (261 bytes) create src/app/user/user.component.css (0 bytes) update src/app/app.module.ts (586 bytes) 

1) first go to your Project Directory

2) then Run below Command in terminal.

ng generate component componentname 

OR

ng g component componentname 

3) after that you will see output like this,

create src/app/test/componentname.component.css (0 bytes) create src/app/test/componentname.component.html (23 bytes) create src/app/test/componentname.component.spec.ts (614 bytes) create src/app/test/componentname.component.ts (261 bytes) update src/app/app.module.ts (1087 bytes) 

ng g component componentname 

It generates the component and adds the component to module declarations.

when creating component manually , you should add the component in declaration of the module like this :

@NgModule({ imports: [ yourCommaSeparatedModules ], declarations: [ yourCommaSeparatedComponents ] }) export class yourModule { } 

If you want to create new component without .spec file, you can use

ng g c component-name --spec false 

You can find these options using ng g c --help

For creating component under certain folder

ng g c employee/create-employee --skipTests=false --flat=true 

This line will create a folder name 'employee', underneath that it creates a 'create-employee' component.

without creating any folder

ng g c create-employee --skipTests=false --flat=true 

Make sure you are in your project directory in the CMD line

 ng g component componentName 

ng g c componentname 

It will create the following 4 files:

1. componentname.css
2. componentname.html
3. componentname.spec.ts
4. componentname.ts

ng generate component component_name was not working in my case because instead of using 'app' as project folder name, I renamed it to something else. I again changed it to app. Now, it is working fine

ng g c COMPONENTNAME 

this command use for generating component using terminal this i use in angular2.

g for generate c for component

In my case i happen to have another .angular-cli.json file in my src folder. Removing it solved the problem. Hope it helps

angular 4.1.1 angular-cli 1.0.1

ng g component component name 

before you type this commend check you will be in your project directive path

ng g c --dry-run so you can see what you are about to do before you actually do it will save some frustration. Just shows you what it is going to do without actually doing it.

You should be in the src/app folder of your angular-cli project on command line. For example:

D:\angular2-cli\first-app\src\app> ng generate component test 

Only then it will generate your component.

go to your project directory in CMD, and run the following commands. You can use the visual studio code terminal also.

ng generate component "component_name"

OR

ng g c "component_name"

a new folder with "component_name" will be created

component_name/component_name.component.html component_name/component_name.component.spec.ts component_name/component_name.component.ts component_name/component_name.component.css

new component will be Automatically added module.

you can avoid creating spec file by following command

ng g c "component_name" --nospec

Did you update the angular-cli to latest version? or did you try updating node or npm or typescript? this issue comes because of versions like angular/typescript/node. If you are updating the cli, use this link here.

go to your angular project folder and open the command promt an type "ng g component header" where header is the new component that you want to create.As default the header component will be created inside the app component.You can create components inside a component .For example if you want to create a component inside he header that we made above then type"ng g component header/menu". This will create a menu component inside the header component

ng g c COMPONENTNAME should work, if your are getting module not found exception then try these things-

1. Check your project directory.
2. If you are using visual studio code then reload it or reopen your project in it.

Go to Project location in Specified Folder

C:\Angular6\sample> 

Here you can type the command

C:\Angular6\sample>ng g c users 

Here g means generate , c means component ,users is the component name

it will generate the 4 files

users.component.html, users.component.spec.ts, users.component.ts, users.component.css 

Step1:

Get into Project Directory!(cd into created app).

Step2:

Type in the following command and run!

ng generate component [componentname]

• Add the name of component you want to generate in the [componentname] section.

OR

ng generate c [componentname]

• Add name of component you want to generate in the [componentname] section.

Both will work

For reference checkout this section of Angular Documentation!

For reference also checkout the link to Angular Cli on github!

There are mainly two ways to generate new component in Angular, using ng g c <component_name> , another way is that using ng generate component <component_name>. using one of these commands new component can be generated.

ng generate component componentName. 

It will automatically import the component in module.ts

cd to your project and run,

> ng generate component "componentname" ex: ng generate component shopping-cart 

OR

> ng g c shopping-cart 

(This will create new folder under "app" folder with name "shopping-cart" and create .html,.ts, .css. specs files.)

If you do not want to generate .spec file

> ng g c shopping-cart --skipTests true 

If you want to create component in any specific folder under "app"

> ng g c ecommerce/shopping-cart 

(you will get folder structure "app/ecommerce/shopping-cart")

I think you have to upgrade the latest angular cli using this command.

npm install -g @angular/cli 

Then if you run ng g c componentName, it will work.

if you want that component not appears in one folder.

ng g c NameComponent --flat