why is not a known element with out body tag
I am new to this angular 6. This may be stupid to ask but i want to make my concept clear. Below is the code my of appComponent typescript
import { Component, OnInit, Inject } from '@angular/core';
import {ToastrService} from './services/toastr.service';
@Component({
selector: 'app-root',
templateUrl: './app.component.html',
styleUrls: ,
providers:[ToastrService]
})
export class AppComponent {
}
when i put <app-root> in the index.html in the following format. it works perfectly fine.
<html>
<body>
<app-root></app-root>
</body>
</html>
but when i remove the html and body tags it just give me an error given below.
main.ts:12 Error: The selector "app-root" did not match any elements
at DefaultDomRenderer2.push../node_modules/@angular/platform-browser/fesm5/platform-browser.js.DefaultDomRenderer2.selectRootElement (platform-browser.js:1073)
at BaseAnimationRenderer.push../node_modules/@angular/platform-browser/fesm5/animations.js.BaseAnimationRenderer.selectRootElement (animations.js:229)
at DebugRenderer2.push../node_modules/@angular/core/fesm5/core.js.DebugRenderer2.selectRootElement (core.js:20837)
at createElement (core.js:17499)
at createViewNodes (core.js:19737)
at createRootView (core.js:19690)
at callWithDebugContext (core.js:20722)
at Object.debugCreateRootView [as createRootView] (core.js:20208)
at ComponentFactory_.push../node_modules/@angular/core/fesm5/core.js.ComponentFactory_.create (core.js:18029)
at ComponentFactoryBoundToModule.push../node_modules/@angular/core/fesm5/core.js.ComponentFactoryBoundToModule.create
So my question is.. Do i have to write <app-root> alway in html or body tag? or is there any other way to write <app-root> with out writing in html or body tag?
Thanks
angular angular5 angular6
asked Nov 22 at 19:06
zaid khan
537
add a comment |
I am new to this angular 6. This may be stupid to ask but i want to make my concept clear. Below is the code my of appComponent typescript
import { Component, OnInit, Inject } from '@angular/core';
import {ToastrService} from './services/toastr.service';
@Component({
selector: 'app-root',
templateUrl: './app.component.html',
styleUrls: ,
providers:[ToastrService]
})
export class AppComponent {
}
when i put <app-root> in the index.html in the following format. it works perfectly fine.
<html>
<body>
<app-root></app-root>
</body>
</html>
but when i remove the html and body tags it just give me an error given below.
main.ts:12 Error: The selector "app-root" did not match any elements
at DefaultDomRenderer2.push../node_modules/@angular/platform-browser/fesm5/platform-browser.js.DefaultDomRenderer2.selectRootElement (platform-browser.js:1073)
at BaseAnimationRenderer.push../node_modules/@angular/platform-browser/fesm5/animations.js.BaseAnimationRenderer.selectRootElement (animations.js:229)
at DebugRenderer2.push../node_modules/@angular/core/fesm5/core.js.DebugRenderer2.selectRootElement (core.js:20837)
at createElement (core.js:17499)
at createViewNodes (core.js:19737)
at createRootView (core.js:19690)
at callWithDebugContext (core.js:20722)
at Object.debugCreateRootView [as createRootView] (core.js:20208)
at ComponentFactory_.push../node_modules/@angular/core/fesm5/core.js.ComponentFactory_.create (core.js:18029)
at ComponentFactoryBoundToModule.push../node_modules/@angular/core/fesm5/core.js.ComponentFactoryBoundToModule.create
So my question is.. Do i have to write <app-root> alway in html or body tag? or is there any other way to write <app-root> with out writing in html or body tag?
Thanks
angular angular5 angular6
asked Nov 22 at 19:06
zaid khan
537
1
This would be an interesting opportunity for you to follow the stack trace and dive into the Angular source code to see how it is finding the root element.
– Ben Steward
Nov 22 at 19:39
Yeah dude, and I’m saying the source code may answer his question and reveal some interesting tidbits about how else he might do whatever he is trying to do.
– Ben Steward
Nov 22 at 20:03
Possible duplicate of Angular2 - Error: The selector "app-root" did not match any elements
– Mahi
Nov 22 at 20:13
add a comment |
I am new to this angular 6. This may be stupid to ask but i want to make my concept clear. Below is the code my of appComponent typescript
import { Component, OnInit, Inject } from '@angular/core';
import {ToastrService} from './services/toastr.service';
@Component({
selector: 'app-root',
templateUrl: './app.component.html',
styleUrls: ,
providers:[ToastrService]
})
export class AppComponent {
}
when i put <app-root> in the index.html in the following format. it works perfectly fine.
<html>
<body>
<app-root></app-root>
</body>
</html>
but when i remove the html and body tags it just give me an error given below.
main.ts:12 Error: The selector "app-root" did not match any elements
at DefaultDomRenderer2.push../node_modules/@angular/platform-browser/fesm5/platform-browser.js.DefaultDomRenderer2.selectRootElement (platform-browser.js:1073)
at BaseAnimationRenderer.push../node_modules/@angular/platform-browser/fesm5/animations.js.BaseAnimationRenderer.selectRootElement (animations.js:229)
at DebugRenderer2.push../node_modules/@angular/core/fesm5/core.js.DebugRenderer2.selectRootElement (core.js:20837)
at createElement (core.js:17499)
at createViewNodes (core.js:19737)
at createRootView (core.js:19690)
at callWithDebugContext (core.js:20722)
at Object.debugCreateRootView [as createRootView] (core.js:20208)
at ComponentFactory_.push../node_modules/@angular/core/fesm5/core.js.ComponentFactory_.create (core.js:18029)
at ComponentFactoryBoundToModule.push../node_modules/@angular/core/fesm5/core.js.ComponentFactoryBoundToModule.create
So my question is.. Do i have to write <app-root> alway in html or body tag? or is there any other way to write <app-root> with out writing in html or body tag?
Thanks
angular angular5 angular6
asked Nov 22 at 19:06
zaid khan
537
I am new to this angular 6. This may be stupid to ask but i want to make my concept clear. Below is the code my of appComponent typescript
import { Component, OnInit, Inject } from '@angular/core';
import {ToastrService} from './services/toastr.service';
@Component({
selector: 'app-root',
templateUrl: './app.component.html',
styleUrls: ,
providers:[ToastrService]
})
export class AppComponent {
}
when i put <app-root> in the index.html in the following format. it works perfectly fine.
<html>
<body>
<app-root></app-root>
</body>
</html>
but when i remove the html and body tags it just give me an error given below.
main.ts:12 Error: The selector "app-root" did not match any elements
at DefaultDomRenderer2.push../node_modules/@angular/platform-browser/fesm5/platform-browser.js.DefaultDomRenderer2.selectRootElement (platform-browser.js:1073)
at BaseAnimationRenderer.push../node_modules/@angular/platform-browser/fesm5/animations.js.BaseAnimationRenderer.selectRootElement (animations.js:229)
at DebugRenderer2.push../node_modules/@angular/core/fesm5/core.js.DebugRenderer2.selectRootElement (core.js:20837)
at createElement (core.js:17499)
at createViewNodes (core.js:19737)
at createRootView (core.js:19690)
at callWithDebugContext (core.js:20722)
at Object.debugCreateRootView [as createRootView] (core.js:20208)
at ComponentFactory_.push../node_modules/@angular/core/fesm5/core.js.ComponentFactory_.create (core.js:18029)
at ComponentFactoryBoundToModule.push../node_modules/@angular/core/fesm5/core.js.ComponentFactoryBoundToModule.create
So my question is.. Do i have to write <app-root> alway in html or body tag? or is there any other way to write <app-root> with out writing in html or body tag?
Thanks
angular angular5 angular6
angular angular5 angular6
asked Nov 22 at 19:06
zaid khan
537
asked Nov 22 at 19:06
zaid khan
537
edited Nov 22 at 19:13
asked Nov 22 at 19:06
zaid khan
537
asked Nov 22 at 19:06
zaid khan
537
asked Nov 22 at 19:06
zaid khan
537
537
1
This would be an interesting opportunity for you to follow the stack trace and dive into the Angular source code to see how it is finding the root element.
– Ben Steward
Nov 22 at 19:39
Yeah dude, and I’m saying the source code may answer his question and reveal some interesting tidbits about how else he might do whatever he is trying to do.
– Ben Steward
Nov 22 at 20:03
Possible duplicate of Angular2 - Error: The selector "app-root" did not match any elements
– Mahi
Nov 22 at 20:13
add a comment |
1
This would be an interesting opportunity for you to follow the stack trace and dive into the Angular source code to see how it is finding the root element.
– Ben Steward
Nov 22 at 19:39
Yeah dude, and I’m saying the source code may answer his question and reveal some interesting tidbits about how else he might do whatever he is trying to do.
– Ben Steward
Nov 22 at 20:03
Possible duplicate of Angular2 - Error: The selector "app-root" did not match any elements
– Mahi
Nov 22 at 20:13
1
1
This would be an interesting opportunity for you to follow the stack trace and dive into the Angular source code to see how it is finding the root element.
– Ben Steward
Nov 22 at 19:39
This would be an interesting opportunity for you to follow the stack trace and dive into the Angular source code to see how it is finding the root element.
– Ben Steward
Nov 22 at 19:39
Yeah dude, and I’m saying the source code may answer his question and reveal some interesting tidbits about how else he might do whatever he is trying to do.
– Ben Steward
Nov 22 at 20:03
Yeah dude, and I’m saying the source code may answer his question and reveal some interesting tidbits about how else he might do whatever he is trying to do.
– Ben Steward
Nov 22 at 20:03
Possible duplicate of Angular2 - Error: The selector "app-root" did not match any elements
– Mahi
Nov 22 at 20:13
Possible duplicate of Angular2 - Error: The selector "app-root" did not match any elements
– Mahi
Nov 22 at 20:13
add a comment |
1 Answer
1
active
oldest
votes
Yes, <app-root> always in html or body tag as long as you want to display your <app-root> module.
Angular2+ architecture is modular i.e. it has divided view into multiple reusable components where
template(.html) is view
.ts is considered to be controller for business logic.
So, here is parent module which contains app.module.ts and its corresponding .ts,.html,.css,.spec file.
Index.html is the first page which loads as simple as you have worked in html pages which consist of a <html>,<head>,<body> tags.
index.html
The page which first loads and contain <html>,<head>,<body> tags.
index.html
<html>
<head>
<script></script>
<link></link>
</head>
<body>
Hello world.
<app-root></app-root> <--- where whole module loads-- Root selctor
</body>
</html>
app.component.ts
@Component({
selector: 'app-root'
})
app.module.ts
bootstrap: [AppComponent] <-- appComponent is bootstrapped(root component)
answered Nov 22 at 19:24
Mahi
685319
please have a look at the below example. He is not using any html tag in index.html stackblitz.com/edit/angular-multi-layout-example?file=main.ts
– zaid khan
Nov 22 at 19:29
Read Stackblitz docs- stackblitz.com/docs
– Mahi
Nov 22 at 19:46
add a comment |
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Yes, <app-root> always in html or body tag as long as you want to display your <app-root> module.
Angular2+ architecture is modular i.e. it has divided view into multiple reusable components where
template(.html) is view
.ts is considered to be controller for business logic.
So, here is parent module which contains app.module.ts and its corresponding .ts,.html,.css,.spec file.
Index.html is the first page which loads as simple as you have worked in html pages which consist of a <html>,<head>,<body> tags.
index.html
The page which first loads and contain <html>,<head>,<body> tags.
index.html
<html>
<head>
<script></script>
<link></link>
</head>
<body>
Hello world.
<app-root></app-root> <--- where whole module loads-- Root selctor
</body>
</html>
app.component.ts
@Component({
selector: 'app-root'
})
app.module.ts
bootstrap: [AppComponent] <-- appComponent is bootstrapped(root component)
answered Nov 22 at 19:24
Mahi
685319
please have a look at the below example. He is not using any html tag in index.html stackblitz.com/edit/angular-multi-layout-example?file=main.ts
– zaid khan
Nov 22 at 19:29
Read Stackblitz docs- stackblitz.com/docs
– Mahi
Nov 22 at 19:46
add a comment |
Yes, <app-root> always in html or body tag as long as you want to display your <app-root> module.
Angular2+ architecture is modular i.e. it has divided view into multiple reusable components where
template(.html) is view
.ts is considered to be controller for business logic.
So, here is parent module which contains app.module.ts and its corresponding .ts,.html,.css,.spec file.
Index.html is the first page which loads as simple as you have worked in html pages which consist of a <html>,<head>,<body> tags.
index.html
The page which first loads and contain <html>,<head>,<body> tags.
index.html
<html>
<head>
<script></script>
<link></link>
</head>
<body>
Hello world.
<app-root></app-root> <--- where whole module loads-- Root selctor
</body>
</html>
app.component.ts
@Component({
selector: 'app-root'
})
app.module.ts
bootstrap: [AppComponent] <-- appComponent is bootstrapped(root component)
answered Nov 22 at 19:24
Mahi
685319
please have a look at the below example. He is not using any html tag in index.html stackblitz.com/edit/angular-multi-layout-example?file=main.ts
– zaid khan
Nov 22 at 19:29
Read Stackblitz docs- stackblitz.com/docs
– Mahi
Nov 22 at 19:46
add a comment |
Yes, <app-root> always in html or body tag as long as you want to display your <app-root> module.
Angular2+ architecture is modular i.e. it has divided view into multiple reusable components where
template(.html) is view
.ts is considered to be controller for business logic.
So, here is parent module which contains app.module.ts and its corresponding .ts,.html,.css,.spec file.
Index.html is the first page which loads as simple as you have worked in html pages which consist of a <html>,<head>,<body> tags.
index.html
The page which first loads and contain <html>,<head>,<body> tags.
index.html
<html>
<head>
<script></script>
<link></link>
</head>
<body>
Hello world.
<app-root></app-root> <--- where whole module loads-- Root selctor
</body>
</html>
app.component.ts
@Component({
selector: 'app-root'
})
app.module.ts
bootstrap: [AppComponent] <-- appComponent is bootstrapped(root component)
answered Nov 22 at 19:24
Mahi
685319
Yes, <app-root> always in html or body tag as long as you want to display your <app-root> module.
Angular2+ architecture is modular i.e. it has divided view into multiple reusable components where
template(.html) is view
.ts is considered to be controller for business logic.
So, here is parent module which contains app.module.ts and its corresponding .ts,.html,.css,.spec file.
Index.html is the first page which loads as simple as you have worked in html pages which consist of a <html>,<head>,<body> tags.
index.html
The page which first loads and contain <html>,<head>,<body> tags.
index.html
<html>
<head>
<script></script>
<link></link>
</head>
<body>
Hello world.
<app-root></app-root> <--- where whole module loads-- Root selctor
</body>
</html>
app.component.ts
@Component({
selector: 'app-root'
})
app.module.ts
bootstrap: [AppComponent] <-- appComponent is bootstrapped(root component)
answered Nov 22 at 19:24
Mahi
685319
edited Nov 22 at 20:13
answered Nov 22 at 19:24
Mahi
685319
answered Nov 22 at 19:24
Mahi
685319
answered Nov 22 at 19:24
Mahi
685319
685319
please have a look at the below example. He is not using any html tag in index.html stackblitz.com/edit/angular-multi-layout-example?file=main.ts
– zaid khan
Nov 22 at 19:29
Read Stackblitz docs- stackblitz.com/docs
– Mahi
Nov 22 at 19:46
add a comment |
please have a look at the below example. He is not using any html tag in index.html stackblitz.com/edit/angular-multi-layout-example?file=main.ts
– zaid khan
Nov 22 at 19:29
Read Stackblitz docs- stackblitz.com/docs
– Mahi
Nov 22 at 19:46
please have a look at the below example. He is not using any html tag in index.html stackblitz.com/edit/angular-multi-layout-example?file=main.ts
– zaid khan
Nov 22 at 19:29
please have a look at the below example. He is not using any html tag in index.html stackblitz.com/edit/angular-multi-layout-example?file=main.ts
– zaid khan
Nov 22 at 19:29
Read Stackblitz docs- stackblitz.com/docs
– Mahi
Nov 22 at 19:46
Read Stackblitz docs- stackblitz.com/docs
– Mahi
Nov 22 at 19:46
add a comment |
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1
This would be an interesting opportunity for you to follow the stack trace and dive into the Angular source code to see how it is finding the root element.
– Ben Steward
Nov 22 at 19:39
Yeah dude, and I’m saying the source code may answer his question and reveal some interesting tidbits about how else he might do whatever he is trying to do.
– Ben Steward
Nov 22 at 20:03
Possible duplicate of Angular2 - Error: The selector "app-root" did not match any elements
– Mahi
Nov 22 at 20:13