Resolving the Angular 13 Reactive Form Validation Parser Error: Unexpected Token [.]

Learn how to fix the Angular 13 Reactive Form Validation Parser Error with our step-by-step guide, helping you avoid unexpected tokens and get your forms working smoothly. --- This video is based on the question https://stackoverflow.com/q/72321139/ asked by the user 'H. M Mahmudul Hasan' ( https://stackoverflow.com/u/13791909/ ) and on the answer https://stackoverflow.com/a/72321231/ provided by the user 'Daniel Ehrhardt' ( https://stackoverflow.com/u/2426224/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions. Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Angular 13 Reactive Form Validation Parser Error: Unexpected token [, expected identifier or keyword Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/licensing The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/by-sa/4.0/ ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/by-sa/4.0/ ) license. If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com. --- Resolving the Angular 13 Reactive Form Validation Parser Error: Unexpected Token [,] If you are working with Angular's reactive forms and encountering a daunting parser error, you are not alone. Recently, many developers have experienced the following error message during their form validation process: "Parser Error: Unexpected token [, expected identifier or keyword." This can be particularly frustrating when you're unsure what the message means or how to resolve it. In this guide, we'll explain the root of this issue and guide you step-by-step through the solution. Let’s dive in! Understanding the Problem What causes the Parser Error? The parser error is generally encountered when Angular's template syntax detects something unexpected in your code. In this case, the issue arises from how you are trying to access the form control errors in your HTML template. Code Example Take a look at the erroneous code snippet: [[See Video to Reveal this Text or Code Snippet]] Here, the inappropriate use of brackets ['controls'] causes the parser error, making Angular unable to interpret your intention correctly. Solution for the Parser Error Step-by-Step Correction Locate the Problematic Code: Find the section of your HTML where you're trying to verify the validity of the form control. In this case, it's where you're checking for errors associated with the project form control. Modify the Syntax: Change the error-checking expression from: [[See Video to Reveal this Text or Code Snippet]] to: [[See Video to Reveal this Text or Code Snippet]] Here, we have removed the dot . before the bracket notation, which is crucial for correct syntax. Review the Updated Code: After making this change, your validation should work as expected, and the parser error should disappear. Conclusion By correcting how you access form control errors, you can resolve the Angular 13 parser error quite easily. Always remember that syntax matters greatly in Angular templates, and small mistakes can lead to larger issues in your application. With this understanding and the outlined solution, you should be better equipped to tackle similar errors in the future. Happy coding!