Angular whitespace validator. com which was acquired by Upmostly in July 2022.

Angular whitespace validator – JackPRead Commented Mar 26, 2019 at 8:12 Angular is a platform for building mobile and desktop web applications. required, Validators. Nov 4, 2017 · I've don't want Validators. Jun 1, 2017 · The simplest way is to use Regex in whatever implementation you need to filter for leading/trailing whitespace. css So, in general we change the apparence of our control using . no-whitespace. Angular Validate field. pattern(nonWhiteSpaceRegExp)]] }); May 2, 2024 · You can easily use this custom validation for no space allowed with angular 6, angular 7, angular 8, angular 9, angular 10, angular 11, angular 12, angular 13, angular 14, angular 15, angular 16 and angular 17. It contains cheatsheet, code, articlues and all learning resources you need. Resets the value and validation result of the editor associated with the current Validator object. ctrl = new FormControl('', trimValidator); ) If you are using template driven forms, you need to create a validation directive. I am using the required validator to make it mandator By default, Angular disables native HTML form validation by adding the novalidate attribute on the enclosing <form> and uses directives to match these attributes with validator functions in the framework. You query the FormGroup for its child controls so that you can compare their values. Oct 30, 2019 · I am implementing register an user in Angular Form register image, it have validated maxlength and minlength before. align matSuffix content with a text inside mat-form-field input. Can someone point me to any info on how to do this? I'm having trouble getting the Angular 5 Validators. Angular 7 email validation using regex on reactive form. When working with forms, there are often fundamental validations that need to be in place, such as mandatory To add onto what @Delosdos has posted. register = this. I want to use this in Angular Validator pattern like Validator, pattern ("[0-9,\s]+\s*$") Correct: 1123, 1232312, 12323213, 13123213213. Try Teams for free Explore Teams A repositoy to learn and boost your Angular skills. The required property will mark FormControl is required and alpha will allow the alphabets with whitespace. Mar 27, 2019 · Global purpose of Validator component is to print validation message related of field name and field validators. but when user enter spaces in input and try to save it then it should not allow to save Dec 18, 2020 · Angular Whitespace Validator working wrong. Pattern validation in angular We would like to show you a description here but the site won’t allow us. Feb 24, 2019 · Typically you would validate this with either some validate() function on the submit button, or alternatively, if using the RXJS library, you can assign an [array of Validators] as a second @parameter to a FormControl object. Oct 27, 2022 · As I've searched for Angular specific I couldn't find any answers, after searching more generic html minlength validation digits without spaces I've found something that pointed me to a solution. ts and import ReactiveFormsModule from @angular/forms: import { NoWhitespaceValidator } from '. validator'. required))//true Nov 27, 2023 · Remove Unwanted Spaces from Angular Form Submission November 27, 2023 • Angular • Published By Josh • 2 minute read When a user types a value into a form field, it’s a very common mistake to add spaces at the beginning and/or end of the value. Oct 2, 2016 · While there is no Angular API to directly find if the required validator is set for a particular field, the roundabout way to achieve this is like as below:. It seems to be Apr 18, 2018 · Angular 2 custom validator to check when either one of the two fields is required. That's why Angular Whitespace Validator working wrong. Live demo Validator that requires the length of the control's value to be less than or equal to the provided maximum length. +[^\s]$ Any string that doesn't begin or end with a white-space will be matched. Related. group({ name: [null, [Validators. 2. !?\\s-]*$'; let formControl = new FormControl('', Validators. resetOption(optionName) Resets a property to its default value. Sometime we need to add validation for no space allow on input field. max(999999999999)])], Angular is a platform for building mobile and desktop web applications. HTML Code Apr 22, 2014 · But If the updated value is entirely whitespace, the form is valid. Close Preview. 0 Not able remove white spaces in HTML of a component in Angular application Sep 27, 2021 · First, Angular’s email validator performs the validation without trimming the value. @param fn => void. Provide details and share your research! But avoid …. Object empty check not working in typescript. I want to trim the datas before they ar Registers a callback function to call when the validator inputs change. io. import { trimValidator } from 'path/to/trim. No Space Validator in Angular. And my question is can i get for example a minlength value which i passed at creating formControl? I havent found any information. 4. 0. myForm. But the white space between two words or characters should be allowed. . It shouldn't accept any special characters. I read that Validators. Apr 21, 2016 · [ts] Cannot find name 'a'. If you're looking for AngularJS or Angular 1 related information, check out r/AngularJS. You can use the built-in pattern validation directive to achieve this. (no symbols), The following is not working, none of the three solutions, Apr 18, 2021 · Angular Whitespace Validator working wrong. Hot Network Questions Jammy - Upgrade python fail Nov 20, 2021 · If we have a validation requirement that cannot be implemented using the built-in validations, we can custom validation in Angular using reactive forms. I am not able to figure out what went wrong. Adding an email validatorlink. You could alternatively use \S to denote the same. Dec 9, 2017 · I'm trying to make a custom validator for a fullname input field for a register form in Angular 4, but it doesn't behave accordingly: It shows the "Only letters and spaces allowed" message even tho May 3, 2019 · So i have my form validation. Rather than adding an extra validator to my formControl, I'd like to extend Angular's Validators. Angular validators are intended to mimic native form validation. 2+ for example, let controller = new FormControl('', [Validators. html","path":"_site/blog/angular Apr 22, 2017 · How does Angular's validation for an invalid form field work? 2. (I only want to add numbers not alphabets). com development by creating an account on GitHub. Mar 24, 2021 · Often forcing them to find some white space to click on the page. ts This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. Jul 16, 2021 · Refer to angular docs: You could create a validator directive. ,We will create new custom validator Mar 7, 2018 · this is from typescript's official docs: /** Removes the leading and trailing white space and line terminator characters from a string. Set a validator for a control in the FormGroup: this. trim(). log(controller. Jun 5, 2019 · This RegEx will allow neither white-space at the beginning nor at the end of your string/word. Open src/app/app. First we need to add the ReactiveFormsModule into our App Module. required. Use the trim() method to remove leading and trailing whitespaces from the form control's value. Contribute to jokecamp/jokecamp. 59. Hot Network Questions 1970's short story with the last garden on top of a skyscraper on a world covered in concrete Oct 10, 2016 · I wrote a very simple custom validator for an input field: import { Directive } from '@angular/core'; import { AbstractControl, NG_VALIDATORS } from '@angular/forms'; function numberValidator(c: Content specific to Angular. validator shouldBeUnique is an async validator which is not working validator cannotContainSpace is non async custom validator which works just fine. length === 0; const isValid = Mar 11, 2022 · Enhancing Form Validation in Angular: Combining Custom Rules with Fundamental Checks. Add to . [ts] Cannot find name 'a'. Dec 23, 2016 · Angular Whitespace Validator working wrong. But it will mark the field as invald if a pattern validator is applied to it. stackblitz. Form Validation empty field shown as invalid in Angular 2+ Hot Network Questions Easy way to understand the difference Jan 8, 2018 · Angular Whitespace Validator working wrong. pattern. Jun 30, 2018 · I'm not a regexp specialist, and using a dedicated validator would probably be clearer and more efficient, but this regexp should do the trick: ^(\S(. required, /* this. Jun 5, 2018 · I am trying to generate regEx to avoid white spaces at the beginning and at the end of the string. compose([Validators. Oct 7, 2018 · I am using a reactive textbox, and I need few custom validations for that. Aug 19, 2020 · Angular Whitespace Validator working wrong. Feb 22, 2017 · The equivalent validator as a string would look like this: const validatorString = '^[a-zA-Z,. Wrong: 123 ,1232123 ,1221323123 , 12312313 Oct 8, 2018 · Angular Whitespace Validator working wrong. See also: To evaluate both controls in a single custom validator, you must perform the validation in a common ancestor control: the FormGroup. clearValidators() Jan 26, 2017 · personal blog and website. Sep 12, 2023 · By default, Angular disables native HTML form validation by adding the novalidate attribute on the enclosing <form> and uses directives to match these attributes with validator functions in the framework. Added validator and auto-trim-out leading and trailing spaces on blur, but validator won't accept the trimmed string. A directive that adds regex pattern validation to controls marked with the pattern attribute. How to make Form Control to take blank field but no all white space charcaters? 2. In this tutorial, we will see how to create the custom validation in Angular 12 with the validation rules as follows: Name and amount fields are should be required. The validators will be applied without Apr 10, 2019 · angular validate that a pair of form fields are empty or both are filled. Nov 18, 2018 · Using RegEx will still allow the user to type in space. Not allowing ONLY spaces in a form Angular Validatiom. If a property becomes required or is no longer required, it will validate the control to immediately show the new validation results. Angular 4 Form Validators - minLength & maxLength does not work on field type number. For ex: I have 3 input fields name 'card number','expiry','cvv'. ts ctrl: FormControl; ngOnInit() { this. - thedevankit/Angular Sep 11, 2020 · angular form validation whitespace. 8. But actually you need either of RegEx to be satisfied, so that's why consider creating a custom validator which would manually testing both the RegEx with OR operator. Also check out the official documentation on Form Validation from Angular. let nospacePattern = [a-zA-Z0-9] Update. If you want simple validation, in a form Angular Aug 25, 2021 · Angular react form, "title" must have minimum of 4 characters without leading and trailing whitespace. setValidators([Validators. Preserving whitespace. set select field to invalid manually in Angular 8. Mar 22, 2018 · Angular Whitespace Validator working wrong. css Mar 26, 2019 · By the way, your pattern doesn't accept whitespace so if you are matching whitespace there is a problem elsewhere, not in the regex pattern. pattern requires a different form Jun 2, 2019 · Angular custom directive. trailing-whitespace-validator-pattern. I'm kinda new to Angular and Regex and I'm currently stuck with a problem. Email validation in angular using reactive form. Jan 26, 2017 · How do we create a custom validator directive to treat whitespace as invalid in Angular (Angular 2)? The built in angular required input is easily fooled by a run of spaces so lets create our own validator. We’re gonna use following modules: Angular 17; Bootstrap 4; @angular/forms 17; Setup Project. Oct 9, 2020 · I have this form group in angular. I already tried this approach but I'm concern that when using it with a <textarea> any line break invalidate the input even if there's value in it, so when someone hits enter to create a new line the valid pattern transforms into an invalid one. It's the html input pattern attribute which we can also use in angular so my solution is: Validators. \s denotes white-spaces and so [^\s] denotes NOT white-space. The input box cannot have a character starting with a blank space. 1 Don't allow WhiteSpace in Angular Form. Join the community of millions of developers who build compelling user interfaces with Angular. The directive is provided with the NG_VALIDATORS multi-provider list. Tests the value using a regular expression pattern suitable for common use cases. Dec 13, 2022 · Technology. The whole string must match the pattern (i. To review, open the file in an editor that reveals hidden Unicode characters. Date validation using angular material date picker. [tslint] missing whitespace [ts] Expression Starter project for Angular apps that exports to the Angular CLI {"payload":{"allShortcutsEnabled":false,"fileTree":{"_site/blog/angular-whitespace-validator-directive":{"items":[{"name":"index. Add Answer . Aug 30, 2019 · Dynamic Validation in Angular Dynamic Forms. Feb 6, 2014 · I am completely new to regular expressions ,and I am trying to create a regular expression in flex for a validation. controls['controlName']. The code of custom whitespace validation directive Oct 5, 2021 · I have an Angular form with two inputs, username and password, when the user submits the form the values are sent with POST to a Spring Boot REST Controller. I've tried all of these, but none of them works: {{text}} text = remove white space from text in angular. Dec 27, 2024. js and @angular/router. So can someone help me put validation in mat-input to remove whitespace from inout box. A angular-cli project based on @angular/animations, @angular/compiler, @angular/core, @angular/common, @angular/platform-browser-dynamic, @angular/forms, @angular/platform-browser, rxjs, tslib, zone. Jun 13, 2018 · Ask questions, find answers and collaborate at work with Stack Overflow for Teams. e. For template-driven forms we create a validator class, often re-using the same factory function as was used in model-driven forms. the pattern is anchored on both sides) I'm trying to validate a name field with not allowing spaces in the beginning, also tried this ( Angular Form Input block (space) REGEX ), but that doesn't allow spaces at all. I need to create an Angular Directive that allows an input field to do the following: Alphanumeric only First input must For model-driven forms we use a factory function which returns a validator function configured as we want. This is my dumb component and i wa Aug 27, 2021 · public noWhitespaceValidator(control: FormControl) { const isWhitespace = (control. A directive that adds regex pattern validation to controls marked with the pattern Starter project for Angular apps that exports to the Angular CLI. (space in between words are allowed). json for all fields name. How to reserve space for form validation messages in Angular? Hot Network Questions Why is the United Kingdom often May 7, 2018 · Angular 2 form validation, minLength validator is not working. increase width and add placeholder to mat input Jun 1, 2020 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand Dec 20, 2019 · Sometime we need to add validation for no space allow on input field. Explanation: ^ denotes the beginning of the string. validator'; import { Validator, AbstractControl, Validators, NG_VALIDATORS } from '@angular/forms'; * This validator works like "required" but it does not allow whitespace either The email validation is based on the WHATWG HTML specification with some enhancements to incorporate more RFC rules. What’s New in Angular 19. need pattern not to allow only spaces. validateUsername()*/], email Sep 9, 2017 · The Form Validation of multiple parameters or multiple conditions should be composed as single validator otherwise you will get observable or promise error: phone: ['', Validators. If you allow any whitespace between non-whitespace chunks, replace the literal space with \s (or \\s) in the patterns. so i created very simple way for no space allow to input field in angular application. If you have a look at Validator. min(10000000000), Validators. Fair Finch answered on September 11, 2020 Popularity 8/10 Helpfulness 5/10 Contents ; answer angular form validation Aug 21, 2015 · AngularJS trims the input by default, so you need to use ng-trim="false" in order to pass leading and trailing whitespace to your pattern regex. What I need is that I want to validate the name field. */ trim(): string; – Kelwin Tantono Commented Jul 13, 2023 at 15:51 Dec 18, 2017 · I'm currently trying to validate a textarea in angular 2 to NOT have only whitespaces or line breaks (/n or /r). AngularJS monitors the state of the form and input fields (input, text-area, select), and notify the user about the current state. May 9, 2019 · this way you're checking if the trimmed length is the same as the non trimmed length, this would indicate if there is white space before or after effectively, as the trim function returns the string with white space trimmed off the beginning and end, so if the lengths aren't the same, whitespace has been trimmed. Angular is a platform for building mobile and desktop web applications. Starter project for Angular apps that exports to the Angular CLI Validator library for Angular 2+. Mar 27, 2018 · In any component that wants to use the trim. No white space validator for Optional filed. AngularJS also holds information about whether the input fields have been touched, modified, or not. The callback function Feb 18, 2018 · I want to check empty validation plus the credit card inputs check. Reduce white space between title and plot when adding marginal plot to ggplot2 Jun 12, 2019 · NOTE when we create a custom form control, Angular add ng-invalid ng-touched to our component. NOT mark as touched, NOT setErrors (Angular make this work for us), only return null or something – Feb 18, 2019 · the directive works, however the validation does not behave correctly: the validation is set to not allow spaces in the value; when I type a space it is trimmed by the directive but the validation fails as if the space is not visible but still there. He is an expert in Angular JS and was the owner of tutorialsforangular. Open Preview in new tab. Using a regular expression, I am going to validate that the user input does NOT contain any white-space and consists of only characters and digits starting with digit. In regular form validation, we validate the form using a reactive form’s custom validation or pattern validation. Remove the validator from the control in the FormGroup: this. If you want to use native validation in combination with Angular-based validation, you can re-enable it with the ngNativeValidate directive. The following example shows how to add an email validator to an input attached to an ngModel binding. pattern to work. In order to validate that no whitespace is allowed, we can use various versions of Angular like Angular 6, 7, 8, 9, 10, and 11. pattern(validatorString)); Note that if you leave out the ^ and $ when the expression is passed as a string, Angular will automatically add them when processing the validator. Feb 10, 2019 · I am tying to implement custom async validator in angular. Starter project for Angular apps that exports to the Angular CLI. so far i have: expression="[A-Za-z][A-Za-z0-9]*" Feb 21, 2020 · it adds valueChange listeners on the property, the validation depends on. Using the trim method:. If you happen to have a Pluralsight subscription, Deborah Kurata has a great course on Angular Reactive Forms, and there is a clip or two on custom form validation in the Validation module. 7. value || ''). but i found way to create custom validation for rules for this. I am using Angular 2. Angular 10 reactive form Validators minLength to ignore spaces. For example, 12345 becomes 12345 is still invalid. pattern('\\s*(\\S\\s*){16,}') Jan 13, 2022 · Angular Whitespace Validator working wrong. Sep 4, 2019 · Angular Whitespace Validator working wrong. validator. I made a directive for whitespace here: import { Directive } from '@angular/core'; import { Sep 28, 2021 · Angular: Validator Alphanumeric or Whitespace in Formbuilder. Aug 30, 2016 · An alternative would be using the Angular pattern validator and matching on any non-whitespace character. required to consider just whitespace as fulfilling its requirement. 1. Use ng generate to generate a new directive called WhiteSpaceValidator; After you've done this implement the validator interface in your directive: Validator; Add the code to check for whitespaces; Add directive to your input; Validator File Jan 15, 2019 · I have a pop-up to create a new Project. We’re gonna use following modules: Angular 14; Bootstrap 4; @angular/forms 14; Setup Project. There are no errors in the console. New line breaks typescript code in Angular 2. i thought i will use something if condition or anything else. validating email input in angular - pattern validation. The pattern directive allows you to specify a regular expression that the form control's value must match. 0 How to make Form Control to take blank field but no all white space charcaters Mar 5, 2021 · I am want to write an Angular FormBuilder validator that only allows alphanumeric characters, empty string, or whitespaces. But it does not seem to be working. More information can be found on the Validators. 1 Angular removing template white space. Jan 15, 2019 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. so here i will give you example of How to validate Whitespace / spaces in angular applicarion?, you can easily use custom validation for Angular No Whitespace Allowed Vaidator for reactive form. module. I try to show two continuous spaces between a and bin the page. *\S)?)?$ Explanation: it can contain no character at all (hence the final ?) or it should start with a non-white-space (beginning \S) followed by nothing (second-to-last ?) Aug 11, 2017 · why white space are getting ignored in AngularJS application. So This a form which contains name and customer_id. validate() Validates the value of the editor that is controlled by the current Validator object against the list of the specified validation rules. Dec 27, 2022 · I want to allow space after comma but not before comma and white space anywhere else is fine. hasValidator(Validators. Custom validation. I made a function which constructs a new validator, comparing the values of each: Sep 7, 2017 · What you were trying was combination of pattern(AND condition) should satisfy together then only the field will be valid. You can tell Angular to preserve whitespace in a template by specifying preserveWhitespaces: true in the @Component decorator for a template. com which was acquired by Upmostly in July 2022. Apr 6, 2022 · Now we just need to validate that our two controls match, this can be done by adding another validator directly to our FormGroup. Here's my code of the validator (just as I use it currently, no time to optimize it). Jul 10, 2017 · You can find an example on how to build and use a custom validator at the link below. validator'; import { Validator, AbstractControl, Validators, NG_VALIDATORS } from '@angular/forms'; /** * This validator works like "required" but it does not allow whitespace either * * @export * @class NoWhitespaceDirective * @implements {Validator} */ @Directive({selector: '[nfNoSpaces]', Yes, it is possible to avoid white spaces/empty spaces in an Angular 2 form. js, you will notice that you may pass both a string or a regex literal to the Validators. Learn how to take an Angular form and add validation. required]). Note that the maxLength validator is intended to be used only for types that have a numeric length property, such as strings or arrays. May 12, 2019 · Regex max string length between commas but ignores whitespace. In some cases, users accidentally add whitespace to the email when copying and pasting, which causes the… Allowing access to your localhost resources can lead to security issues such as unwanted request access or data leaks through your localhost. validator'; import { Validator, AbstractControl, Validators, NG_VALIDATORS } from '@angular/forms'; * This validator works like "required" but it does not allow whitespace either Apr 10, 2019 · I took at look at the example you provided; this is actually expected behavior. required,Validators. The regex must match the entire control value. May 1, 2024 · AngularJS performs form validation on the client side. I've tried every regex that SHOULD normally work, but it's not working. ^[^\s]. See also: Validator that requires the length of the control's value to be less than or equal to the provided maximum length. [tslint] expected an assignment or function call [tslint] missing whitespace [ts] Cannot invoke an expression whose type lacks a call signature. Asking for help, clarification, or responding to other answers. Jun 22, 2019 · a custom validator is a function that "return" null if is valid and another thing if is not valid. Using this custom validation, we can easily validate no whitespace allowed. The native required validator accepts whitespace as valid input, so the Angular required validator does as well. ts. /no-whitespace. Sure! Here are two ways you can avoid white space/empty spaces in your Angular 2 forms: 1. Then I read about an interesting “quirk” within Angular’s Async Validator code. I save the entry of new project in hive which doesn't support white space in table name. Feb 4, 2024 · Technology. Angular pattern Validator is not working as expected. This validator is also provided by default if you use the the HTML5 maxlength attribute. To add a validator to the FormGroup, pass the new validator in as the second argument on creation. group({ username: ['', Validators. import { NgForm, FormControl } from '@angular/forms'; const isRequiredControl = (formGroup: NgForm, controlName: string): boolean => { const { controls } = formGroup const control = controls[controlName] const { validator } = control if Feb 5, 2019 · UPDATE: Both ways from Chris and Mark work. Regex for email validation in angular. See documentation: ngTrim (optional) If set to false Angular will not automatically trim the input. It stated that if an existing validation was in progress when another request for validation came in, it would cancel that initial validation and instead subscribe to that incoming validation Angular avoids sending these unnecessary whitespace characters to the browser in the first place by collapsing them to a single character when it compiles the template. Sep 25, 2022 · Angular Forms: Validation Made Simple. Validator that requires the control's value pass an email validation test. required]) console. If possible please mention also to mention in using toastr Jun 29, 2018 · Remove all form control white space form Form Group. custom validator : Form group validator is overriding the form control validator in Angular 10. Angular Whitespace Validator working wrong. May 8, 2017 · If you want to check if a controller has a certain validators, it is very simple for angular 12. Angular: disable a formfield and keep form invalid. [ts] The left-hand side of an arithmetic operation must be of type 'any', 'number' or an enum type. Contribute to Nightapes/ngx-validators development by creating an account on GitHub. If you don't really want to allow the user to type in space in the first place, you'll have to prevent it by listening to the keydown event on the input and then handling it to prevent its default behaviour. Assign field names We created separate fields object in en. So, in general we change the apparence of our control using . How to remove special character from input or textarea using AngularJs ? 2. formGroup = this. The pattern is based on the definition of a valid email address in the WHATWG HTML specification with some enhancements to incorporate more RFC rules (such as rules related to domain names and the lengths of different parts of the address). Standalone Components, Enhanced Signals Oct 8, 2024 · Answer by Atticus Perkins Actually, few days ago i was working on my reactive form and i need to add custom validation for not allow white space. Jul 6, 2020 · Making Required Attribute Also Validate Whitespace In Angular By Wade Wade is a full-stack developer that loves writing and explaining complex topics. ts and import ReactiveFormsModule from @angular/forms: A angular-cli project based on @angular/animations, @angular/compiler, @angular/core, @angular/common, @angular/platform-browser-dynamic, @angular/forms, @angular/platform-browser, rxjs, tslib, zone. ref:html input pattern. Hot Network Questions Mar 24, 2017 · space Not allowed. What i want is by default it is optional but if user enters i Feb 27, 2014 · Angular Whitespace Validator working wrong. Starter project for Angular apps that exports to the Angular CLI trailing-whitespace-validator-dfgbcf. import { NoWhitespaceValidator } from '. Hot Network Questions How much are muscle wear/tear obstacles to powered exoskeletons? Is there a commonly used expression Sep 11, 2022 · So I want to validate that my input field contains not just whitespace (spacebar) and special characters. fb. Angular (7): Materials, Datepicker, Validation not validating correctly (always invalid) 4. And now, I add an validation to check enter password have white space. const nonWhitespaceRegExp: RegExp = new RegExp("\\S"); this. Jamsheer Moidu. email page. Hot Network Questions Find the mode of a set of positive integers Implementing the iterative error-text-accumulation pattern from the angular2 documentation, I accumulate all the messages from my custom form validators into a single string to display to the user: Jan 26, 2017 · personal blog and website. As per requirement in comment section. I tried experimenting it with IF statement like below. \S+ - 1+ non-whitespace chars (?: \S+)* - 0 or more repetitions of a space followed with 1+ non-whitespace chars \s* - 0+ whitespaces $ - end of string (implicit for a string pattern, it is added automatically). Regex passed as a string literal. So far I have tried this - [^-\s][a-zA-Z\s]+[^-\s]$ The issue in above regEx is that it doesn't allow space between two characters. Jun 13, 2018 · I have a formgroup using custom validators: return this. Form input fi Jan 11, 2019 · I am working with Angular and trying to figure out how to properly validate input field and it should not accept white spaces. Just follow the steps from the official documentation. trailing-whitespace-validator. qmd krlkjyrw zzfn rek agbuo smqv ycwzm xsjst xwl wpsavi