# Angular **URL:** https://forum.codewithmosh.com/c/angular/17.md [Latest](https://forum.codewithmosh.com/latest.md) · [Categories](https://forum.codewithmosh.com/categories.md) --- ## [About the Angular category](https://forum.codewithmosh.com/t/about-the-angular-category/28)
**Author:** [@Mosh](https://forum.codewithmosh.com/u/Mosh)\ **Replies:** 0\ **Last updated:** [October 22, 2020, 10:30pm UTC](https://forum.codewithmosh.com/t/about-the-angular-category/28 "2020-10-22T22:30:42Z")
--- ## [New basic angular course](https://forum.codewithmosh.com/t/new-basic-angular-course/72592)
**Author:** [@patrickLegan](https://forum.codewithmosh.com/u/patrickLegan)\ **Replies:** 0\ **Last updated:** [May 4, 2026, 4:01pm UTC](https://forum.codewithmosh.com/t/new-basic-angular-course/72592 "2026-05-04T16:01:29Z")
Just wann put a suggestion out there, a new basic angular course would be a nice edition. I’m trying to get the hang of it at the moment with the angular 4 course but that is so outdated it’s hard to use any of those con… --- ## [Updated code compatible with Angular 13](https://forum.codewithmosh.com/t/updated-code-compatible-with-angular-13/12863)
**Author:** [@smmk123](https://forum.codewithmosh.com/u/smmk123)\ **Replies:** 6\ **Last updated:** [November 28, 2024, 7:23pm UTC](https://forum.codewithmosh.com/t/updated-code-compatible-with-angular-13/12863 "2024-11-28T19:23:16Z")
I spent quite a while figuring out and updating the code in the angular tutorial. I decide to make my code public so maybe it can help some of you guys out. As of 6/2022 I have up to the authentication and authorization … --- ## [Npm install fails on auth-demo project from Angular 4 course: error about selenium webdriver](https://forum.codewithmosh.com/t/npm-install-fails-on-auth-demo-project-from-angular-4-course-error-about-selenium-webdriver/30186)
**Author:** [@ryanbes](https://forum.codewithmosh.com/u/ryanbes)\ **Replies:** 0\ **Last updated:** [November 27, 2024, 9:03pm UTC](https://forum.codewithmosh.com/t/npm-install-fails-on-auth-demo-project-from-angular-4-course-error-about-selenium-webdriver/30186 "2024-11-27T21:03:21Z")
Hi, I thought it would be good practice to get an old Angular 4 project from this course up and running. I’m on Node v6.9.5 and Angular CLI 1.1.0. When I run ‘npm install’ I get the following errors in the terminal. … --- ## [firebase.User issue](https://forum.codewithmosh.com/t/firebase-user-issue/12042)
**Author:** [@Ronak\_Darji](https://forum.codewithmosh.com/u/Ronak_Darji)\ **Replies:** 5\ **Last updated:** [November 11, 2024, 6:51am UTC](https://forum.codewithmosh.com/t/firebase-user-issue/12042 "2024-11-11T06:51:13Z")
Can someone please help me solve the below Observable problem. user : Observable\ constructor(private afAuth : AngularFireAuth) { this.user = afAuth.authState } Error: Type ‘User | null’ is not… --- ## [Error: Module build failed (from ./node\_modules/@ngtools/webpack/src/ivy/index.js):](https://forum.codewithmosh.com/t/error-module-build-failed-from-node-modules-ngtools-webpack-src-ivy-index-js/15154)
**Author:** [@rakista80](https://forum.codewithmosh.com/u/rakista80)\ **Replies:** 10\ **Last updated:** [November 4, 2024, 5:45pm UTC](https://forum.codewithmosh.com/t/error-module-build-failed-from-node-modules-ngtools-webpack-src-ivy-index-js/15154 "2024-11-04T17:45:45Z")
Hello guys, I am having this error for 2 days now and I can’t find a solution online. Maybe someone who already find a solution for this, please help. Thanks in advance. ./src/main.ts - Error: Module build failed (from… --- ## [Angular Course is outdated](https://forum.codewithmosh.com/t/angular-course-is-outdated/15314)
**Author:** [@aadit123](https://forum.codewithmosh.com/u/aadit123)\ **Replies:** 7\ **Last updated:** [October 16, 2024, 9:51pm UTC](https://forum.codewithmosh.com/t/angular-course-is-outdated/15314 "2024-10-16T21:51:59Z")
I brought Angular course, and this course isn’t compatible with 14.2 version of Angular. This code at this point is useless as most of the course material is outdated and you’ll have to google for everything. Are there … --- ## [Reactive Forms: Validation](https://forum.codewithmosh.com/t/reactive-forms-validation/12654)
**Author:** [@Nth\_Mania](https://forum.codewithmosh.com/u/Nth_Mania)\ **Replies:** 8\ **Last updated:** [June 25, 2024, 9:55pm UTC](https://forum.codewithmosh.com/t/reactive-forms-validation/12654 "2024-06-25T21:55:11Z")
ngIf="form.get(‘username’).touched This gives me an error message: “Object is possibly ‘null’” --- ## [Angular 17 filter data](https://forum.codewithmosh.com/t/angular-17-filter-data/26550)
**Author:** [@Alander](https://forum.codewithmosh.com/u/Alander)\ **Replies:** 0\ **Last updated:** [May 10, 2024, 7:38am UTC](https://forum.codewithmosh.com/t/angular-17-filter-data/26550 "2024-05-10T07:38:26Z")
Hi everyone. I am new with angular and I need your help. I am using Angular 17. I am making a http request (Get). The user is filtering items by name. I can not change the web service. So I need the folloween: from the… --- ## [Update Angular Course](https://forum.codewithmosh.com/t/update-angular-course/25486)
**Author:** [@sourav785](https://forum.codewithmosh.com/u/sourav785)\ **Replies:** 0\ **Last updated:** [March 6, 2024, 6:53am UTC](https://forum.codewithmosh.com/t/update-angular-course/25486 "2024-03-06T06:53:14Z")
Hey Mosh, I am currently working as a fresherr Angular developer in my country, Bangladesh. I am trying to learn Angular from your long before Angular4 course, but most of the syntaxes are now contradicting the current … --- ## [I am exercising below error when trying to implement validation even after importing formModule/RoutingModule. Any guess what else i am missing here](https://forum.codewithmosh.com/t/i-am-exercising-below-error-when-trying-to-implement-validation-even-after-importing-formmodule-routingmodule-any-guess-what-else-i-am-missing-here/25423)
**Author:** [@birendra.nigam](https://forum.codewithmosh.com/u/birendra.nigam)\ **Replies:** 0\ **Last updated:** [March 3, 2024, 12:05am UTC](https://forum.codewithmosh.com/t/i-am-exercising-below-error-when-trying-to-implement-validation-even-after-importing-formmodule-routingmodule-any-guess-what-else-i-am-missing-here/25423 "2024-03-03T00:05:44Z")
No directive found with exportAs ‘ngModel’.ngtsc(-998003) FirstName First Name is required. --- ## [ I have a query in Angular; can we use Angular Material drag and drop to drag an item from one column and drop it into one of the two columns? will angular material have that functionality](https://forum.codewithmosh.com/t/i-have-a-query-in-angular-can-we-use-angular-material-drag-and-drop-to-drag-an-item-from-one-column-and-drop-it-into-one-of-the-two-columns-will-angular-material-have-that-functionality/25287)
**Author:** [@bhavyanshi](https://forum.codewithmosh.com/u/bhavyanshi)\ **Replies:** 0\ **Last updated:** [February 23, 2024, 10:50pm UTC](https://forum.codewithmosh.com/t/i-have-a-query-in-angular-can-we-use-angular-material-drag-and-drop-to-drag-an-item-from-one-column-and-drop-it-into-one-of-the-two-columns-will-angular-material-have-that-functionality/25287 "2024-02-23T22:50:54Z")
I have a query in Angular; can we use Angular Material drag and drop to drag an item from one column and drop it into one of the two columns? will angular material have that functionality --- ## [This course says Angular 4, but can I buy this course to learn Angular 11?](https://forum.codewithmosh.com/t/this-course-says-angular-4-but-can-i-buy-this-course-to-learn-angular-11/11969)
**Author:** [@helsinki\_red](https://forum.codewithmosh.com/u/helsinki_red)\ **Replies:** 2\ **Last updated:** [February 22, 2024, 8:54pm UTC](https://forum.codewithmosh.com/t/this-course-says-angular-4-but-can-i-buy-this-course-to-learn-angular-11/11969 "2024-02-22T20:54:11Z")
Can I buy this course to learn Angular 11, or should I look at some other courses? Please help me on this. --- ## [Curl Command change to http post in Angular](https://forum.codewithmosh.com/t/curl-command-change-to-http-post-in-angular/23794)
**Author:** [@Calvin](https://forum.codewithmosh.com/u/Calvin)\ **Replies:** 0\ **Last updated:** [November 22, 2023, 9:24am UTC](https://forum.codewithmosh.com/t/curl-command-change-to-http-post-in-angular/23794 "2023-11-22T09:24:28Z")
Dear all big brothers, I am so green on javascript and angular, I have a technical problem, pls help, thanks I have curl command, but don’t know how change to http post in component in Angular, Dummy curl command as … --- ## [Authentication and Authorization section in Angular 4: Beginner to Pro](https://forum.codewithmosh.com/t/authentication-and-authorization-section-in-angular-4-beginner-to-pro/11914)
**Author:** [@ehsanabdi](https://forum.codewithmosh.com/u/ehsanabdi)\ **Replies:** 3\ **Last updated:** [November 13, 2023, 12:46pm UTC](https://forum.codewithmosh.com/t/authentication-and-authorization-section-in-angular-4-beginner-to-pro/11914 "2023-11-13T12:46:37Z")
Hi. If you are doing the Angular 4: Beginner to Pro course, you may struggle with the fake-backend that Mosh has provided in the course, because some of the modules/classes that he has used in his implementation have be… --- ## [Struggling with HTTP Module in Angular](https://forum.codewithmosh.com/t/struggling-with-http-module-in-angular/1538)
**Author:** [@therist](https://forum.codewithmosh.com/u/therist)\ **Replies:** 10\ **Last updated:** [November 7, 2023, 7:58pm UTC](https://forum.codewithmosh.com/t/struggling-with-http-module-in-angular/1538 "2023-11-07T19:58:06Z")
I know the course is older, intended for Angular 4, and I took it as challenge to fix errors stemming from upgrades, but I came to the section consuming HTTP services and I am really struggling now. I’ll eventually figu… --- ## [Catching Errors with rxjs not working as shown](https://forum.codewithmosh.com/t/catching-errors-with-rxjs-not-working-as-shown/5648)
**Author:** [@jordankittle](https://forum.codewithmosh.com/u/jordankittle)\ **Replies:** 2\ **Last updated:** [November 8, 2023, 10:33am UTC](https://forum.codewithmosh.com/t/catching-errors-with-rxjs-not-working-as-shown/5648 "2023-11-08T10:33:03Z")
I am trying to follow along with courses/206545/lectures/3196489 but the error handling with rxjs must have changed. I cannot find .catch available even after importing ‘rxjs/add/operator/catch’ Also, in courses/angula… --- ## [FormBuild is deprecated](https://forum.codewithmosh.com/t/formbuild-is-deprecated/19282)
**Author:** [@Arsen](https://forum.codewithmosh.com/u/Arsen)\ **Replies:** 1\ **Last updated:** [November 7, 2023, 9:49am UTC](https://forum.codewithmosh.com/t/formbuild-is-deprecated/19282 "2023-11-07T09:49:08Z")
How can I solve this problem? --- ## [Angular 4 - Beginner to Pro. Stuck on Reactive Forms -\> Form Array](https://forum.codewithmosh.com/t/angular-4-beginner-to-pro-stuck-on-reactive-forms-form-array/9343)
**Author:** [@olieves](https://forum.codewithmosh.com/u/olieves)\ **Replies:** 3\ **Last updated:** [November 4, 2023, 3:15pm UTC](https://forum.codewithmosh.com/t/angular-4-beginner-to-pro-stuck-on-reactive-forms-form-array/9343 "2023-11-04T15:15:02Z")
I am working on the new-course-component lesson. I am getting error TS7015: Element implicitly has an ‘any’ type because index expression is not of type ‘number’. \*8 ngFor=“let topic of form.get((‘topics’)\[‘… --- ## [Angular 4 versus angular 16 stater code source](https://forum.codewithmosh.com/t/angular-4-versus-angular-16-stater-code-source/23411)
**Author:** [@Mpeiste1234](https://forum.codewithmosh.com/u/Mpeiste1234)\ **Replies:** 0\ **Last updated:** [November 2, 2023, 9:25am UTC](https://forum.codewithmosh.com/t/angular-4-versus-angular-16-stater-code-source/23411 "2023-11-02T09:25:57Z")
Good morning Mosh Hamedani , i am following along with the course and i am using version 16 of angular in the section of the course related to authentification , i cannot launch the server since it does not find the angu… --- ## [Cannot display Angular Component Template (Angular Crash Course)](https://forum.codewithmosh.com/t/cannot-display-angular-component-template-angular-crash-course/23366)
**Author:** [@Mad\_Monarch](https://forum.codewithmosh.com/u/Mad_Monarch)\ **Replies:** 0\ **Last updated:** [October 30, 2023, 7:44am UTC](https://forum.codewithmosh.com/t/cannot-display-angular-component-template-angular-crash-course/23366 "2023-10-30T07:44:19Z")
Hi everyone, I have an issue where I’ve been stuck for days now. I’ve been going through the Angular 4 Crash Course for Busy Developers and in the Angular Fundamentals section, part 3 where Mosh creates, registers and d… --- ## [How to do that OTP by Angular](https://forum.codewithmosh.com/t/how-to-do-that-otp-by-angular/23296)
**Author:** [@Calvin](https://forum.codewithmosh.com/u/Calvin)\ **Replies:** 0\ **Last updated:** [October 27, 2023, 5:09am UTC](https://forum.codewithmosh.com/t/how-to-do-that-otp-by-angular/23296 "2023-10-27T05:09:26Z")
Dear all, I am so green for the Angular programming, I don’t know how to do that, pls help, give me some idea or example one, thousand thanks Calvin Harrod --- ## [Display is not well](https://forum.codewithmosh.com/t/display-is-not-well/23221)
**Author:** [@Calvin](https://forum.codewithmosh.com/u/Calvin)\ **Replies:** 0\ **Last updated:** [October 23, 2023, 9:53am UTC](https://forum.codewithmosh.com/t/display-is-not-well/23221 "2023-10-23T09:53:46Z")
Dear all, I following the chapter 7 of Angular lesson, but the display can’t match with demo, I don’t know why, pls help --- ## [Tailwind Elements Stable v1.0.0. - a free, open-source UI Kit with 500+ components integrated with Angular - is ou](https://forum.codewithmosh.com/t/tailwind-elements-stable-v1-0-0-a-free-open-source-ui-kit-with-500-components-integrated-with-angular-is-ou/22822)
**Author:** [@wste23](https://forum.codewithmosh.com/u/wste23)\ **Replies:** 0\ **Last updated:** [October 3, 2023, 10:23am UTC](https://forum.codewithmosh.com/t/tailwind-elements-stable-v1-0-0-a-free-open-source-ui-kit-with-500-components-integrated-with-angular-is-ou/22822 "2023-10-03T10:23:19Z")
Tailwind Elements Stable v1.0.0. - a free, open-source UI Kit with 500+ components integrated with Angular - is out. And we couldn’t be prouder, so give it a go here :slight\_smile: It will change Your life (or at leas… --- ## [Trying to implement datatables in Oshop Project](https://forum.codewithmosh.com/t/trying-to-implement-datatables-in-oshop-project/22672)
**Author:** [@Garry](https://forum.codewithmosh.com/u/Garry)\ **Replies:** 0\ **Last updated:** [September 23, 2023, 5:24pm UTC](https://forum.codewithmosh.com/t/trying-to-implement-datatables-in-oshop-project/22672 "2023-09-23T17:24:19Z")
Hi, I am using the latest angular version 16 and trying to implement pagination and sorting using angular datatables. admin-product.component.html \ \ Ne… --- ## [Cannot read properties of undefined (reading ‘title’) 2](https://forum.codewithmosh.com/t/cannot-read-properties-of-undefined-reading-title-2/16303)
**Author:** [@amgo85](https://forum.codewithmosh.com/u/amgo85)\ **Replies:** 5\ **Last updated:** [November 19, 2022, 9:25am UTC](https://forum.codewithmosh.com/t/cannot-read-properties-of-undefined-reading-title-2/16303 "2022-11-19T09:25:05Z")
Dear Mr. Jason & everyone I am getting this error the add new-product page is not working I appreciate any help, I am stuck here for two weeks… --- ## [Is the Angular course up to date?](https://forum.codewithmosh.com/t/is-the-angular-course-up-to-date/22414)
**Author:** [@vokuc](https://forum.codewithmosh.com/u/vokuc)\ **Replies:** 6\ **Last updated:** [September 13, 2023, 5:14pm UTC](https://forum.codewithmosh.com/t/is-the-angular-course-up-to-date/22414 "2023-09-13T17:14:09Z")
I need to learn to work with the latest version of Angular quickly, can I still learn with the course on the Website? --- ## [Angular 4 - Async Validators](https://forum.codewithmosh.com/t/angular-4-async-validators/22352)
**Author:** [@jmablis12](https://forum.codewithmosh.com/u/jmablis12)\ **Replies:** 1\ **Last updated:** [September 4, 2023, 12:16pm UTC](https://forum.codewithmosh.com/t/angular-4-async-validators/22352 "2023-09-04T12:16:34Z")
no data is displayed when using the async validation. no error is shown, so i do not know where to debug. --- ## [Angular "Like instagram excercise"](https://forum.codewithmosh.com/t/angular-like-instagram-excercise/1213)
**Author:** [@Heroe](https://forum.codewithmosh.com/u/Heroe)\ **Replies:** 6\ **Last updated:** [August 25, 2023, 7:34am UTC](https://forum.codewithmosh.com/t/angular-like-instagram-excercise/1213 "2023-08-25T07:34:40Z")
why i got this error in coding exactly like in the video , any help? --- ## [Angular | Directives | ngModel error](https://forum.codewithmosh.com/t/angular-directives-ngmodel-error/4829)
**Author:** [@kishore](https://forum.codewithmosh.com/u/kishore)\ **Replies:** 1\ **Last updated:** [August 1, 2023, 11:44am UTC](https://forum.codewithmosh.com/t/angular-directives-ngmodel-error/4829 "2023-08-01T11:44:52Z")
I have tried to create a contact form with the input field having ngModel directive, but when tried to log the instance of form control class, that shows me an error as " NG8003: No directive found with export As ‘ngMode… [Next page](https://forum.codewithmosh.com/c/angular/17.md?page=1)