Styjun

Why is prior to creation called holy?

What did River say when she woke from her proto-comatose state?

What was the Shuttle Carrier Aircraft escape tunnel?

What could exist inside and between the walls of a Dyson Sphere?

Is it damaging to turn off a small fridge for two days every week?

Who are the remaining King/Queenslayers?

Trainee keeps missing deadlines for independent learning

Hot coffee brewing solutions for deep woods camping

Count All Possible Unique Combinations of Letters in a Word

Find the C-factor of a vote

Is there a term for the belief that "if it's legal, it's moral"?

Why don't countries like Japan just print more money?

Array initialization optimization

Should developer taking test phones home or put in office?

What's the difference between a deep fryer and a chip pan?

Why do textbooks often include the solutions to odd or even numbered problems but not both?

Can Ogre clerics use Purify Food and Drink on humanoid characters?

Why does Linux list NVMe drives as /dev/nvme0 instead of /dev/sda?

Can White Castle?

Does having had a visa for a country mean I used to be a citizen/national of that country?

What happens to Cessna electric flaps that are moving when power is lost?

How do I professionally let my manager know I'll quit over smoking in the office?

Loss of power when I remove item from the outlet

When two first person POV characters meet

Validating empty space in class validator

Remove empty elements from an array in JavascriptNode js orm enforce validation if not empty stringexpress-validator : show only one validation error message of a fieldValidation isn't performed for wrong types in Mongoose schemaHow to validate a string field in sequelize.js?Pass @IsInt() validation for application/x-www-form-urlencoded request typeJoi conditional validation based on non empty StringValidate array of objects in express validatorMongoose schema validation: Error for empty string when validating a non-required fieldajv - How to make validation for field what is not required and can be empty or email

.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty height:90px;width:728px;box-sizing:border-box;

3

I want to validate Address field, it may contains numbers or strings, but it should not accept continioues empty spaces

@IsAlphaNUmereic()
Address: string;

i want that, Address can be numeric or alphabetic...
but it should not accepts continues empty spaces

node.js typeorm class-validator

share|improve this question

asked Mar 25 at 7:50

GaneSHGaneSH

12412

add a comment | 

3

I want to validate Address field, it may contains numbers or strings, but it should not accept continioues empty spaces

@IsAlphaNUmereic()
Address: string;

i want that, Address can be numeric or alphabetic...
but it should not accepts continues empty spaces

node.js typeorm class-validator

share|improve this question

asked Mar 25 at 7:50

GaneSHGaneSH

12412

add a comment | 

I want to validate Address field, it may contains numbers or strings, but it should not accept continioues empty spaces

@IsAlphaNUmereic()
Address: string;

i want that, Address can be numeric or alphabetic...
but it should not accepts continues empty spaces

node.js typeorm class-validator

share|improve this question

asked Mar 25 at 7:50

GaneSHGaneSH

12412

share|improve this question

asked Mar 25 at 7:50

GaneSHGaneSH

12412

share|improve this question

asked Mar 25 at 7:50

GaneSHGaneSH

12412

asked Mar 25 at 7:50

GaneSHGaneSH

12412

asked Mar 25 at 7:50

GaneSHGaneSH

12412

1 Answer
1

active

oldest

votes

2

Afaik there's no support for a "isNotBlank"-decorator, but you can just write one yourself:

import registerDecorator, ValidationOptions from "class-validator";

export function IsNotBlank(property: string, validationOptions?: ValidationOptions) 
 return function (object: Object, propertyName: string) 
 registerDecorator(
 name: "isBlank",
 target: object.constructor,
 propertyName: propertyName,
 constraints: [property],
 options: validationOptions,
 validator: 
 validate(value: any) 
 return typeof value === "string" && value.trim().length > 0;
 
 
 );
 ;

You would then add this custom validator to your existing one:

@IsNotBlank()
@IsAlphaNumeric()
Address: string;

Checkout https://github.com/typestack/class-validator#custom-validation-decorators for more information regarding custom validators.

share|improve this answer

edited Mar 25 at 8:32

answered Mar 25 at 8:20

eoleol

3,10931629

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  there is no validator called @IsNotBlank in calss validator
  
  – GaneSH
  Mar 25 at 8:58
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  please read well what he is answering
  
  – Iván Sánchez
  Mar 25 at 18:46
  

  
  
  
  

add a comment | 

Your Answer

StackExchange.ifUsing("editor", function ()
StackExchange.using("externalEditor", function ()
StackExchange.using("snippets", function ()
StackExchange.snippets.init();
);
);
, "code-snippets");

StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "1"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);

else
createEditor();

);

function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);



);

draft saved

draft discarded

Sign up or log in

StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);

Sign up using Google

Sign up using Facebook

Sign up using Email and Password

Post as a guest

Name

Email

Required, but never shown

StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f55333276%2fvalidating-empty-space-in-class-validator%23new-answer', 'question_page');

);

Post as a guest

Name

Email

Required, but never shown

2

Afaik there's no support for a "isNotBlank"-decorator, but you can just write one yourself:

import registerDecorator, ValidationOptions from "class-validator";

export function IsNotBlank(property: string, validationOptions?: ValidationOptions) 
 return function (object: Object, propertyName: string) 
 registerDecorator(
 name: "isBlank",
 target: object.constructor,
 propertyName: propertyName,
 constraints: [property],
 options: validationOptions,
 validator: 
 validate(value: any) 
 return typeof value === "string" && value.trim().length > 0;
 
 
 );
 ;

You would then add this custom validator to your existing one:

@IsNotBlank()
@IsAlphaNumeric()
Address: string;

Checkout https://github.com/typestack/class-validator#custom-validation-decorators for more information regarding custom validators.

share|improve this answer

edited Mar 25 at 8:32

answered Mar 25 at 8:20

eoleol

3,10931629

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  there is no validator called @IsNotBlank in calss validator
  
  – GaneSH
  Mar 25 at 8:58
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  please read well what he is answering
  
  – Iván Sánchez
  Mar 25 at 18:46
  

  
  
  
  

add a comment | 

2

Afaik there's no support for a "isNotBlank"-decorator, but you can just write one yourself:

import registerDecorator, ValidationOptions from "class-validator";

export function IsNotBlank(property: string, validationOptions?: ValidationOptions) 
 return function (object: Object, propertyName: string) 
 registerDecorator(
 name: "isBlank",
 target: object.constructor,
 propertyName: propertyName,
 constraints: [property],
 options: validationOptions,
 validator: 
 validate(value: any) 
 return typeof value === "string" && value.trim().length > 0;
 
 
 );
 ;

You would then add this custom validator to your existing one:

@IsNotBlank()
@IsAlphaNumeric()
Address: string;

Checkout https://github.com/typestack/class-validator#custom-validation-decorators for more information regarding custom validators.

share|improve this answer

edited Mar 25 at 8:32

answered Mar 25 at 8:20

eoleol

3,10931629

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  there is no validator called @IsNotBlank in calss validator
  
  – GaneSH
  Mar 25 at 8:58
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  please read well what he is answering
  
  – Iván Sánchez
  Mar 25 at 18:46
  

  
  
  
  

add a comment | 

Afaik there's no support for a "isNotBlank"-decorator, but you can just write one yourself:

import registerDecorator, ValidationOptions from "class-validator";

export function IsNotBlank(property: string, validationOptions?: ValidationOptions) 
 return function (object: Object, propertyName: string) 
 registerDecorator(
 name: "isBlank",
 target: object.constructor,
 propertyName: propertyName,
 constraints: [property],
 options: validationOptions,
 validator: 
 validate(value: any) 
 return typeof value === "string" && value.trim().length > 0;
 
 
 );
 ;

You would then add this custom validator to your existing one:

@IsNotBlank()
@IsAlphaNumeric()
Address: string;

Checkout https://github.com/typestack/class-validator#custom-validation-decorators for more information regarding custom validators.

share|improve this answer

edited Mar 25 at 8:32

answered Mar 25 at 8:20

eoleol

3,10931629

import registerDecorator, ValidationOptions from "class-validator";

export function IsNotBlank(property: string, validationOptions?: ValidationOptions) 
 return function (object: Object, propertyName: string) 
 registerDecorator(
 name: "isBlank",
 target: object.constructor,
 propertyName: propertyName,
 constraints: [property],
 options: validationOptions,
 validator: 
 validate(value: any) 
 return typeof value === "string" && value.trim().length > 0;
 
 
 );
 ;

@IsNotBlank()
@IsAlphaNumeric()
Address: string;

share|improve this answer

edited Mar 25 at 8:32

answered Mar 25 at 8:20

eoleol

3,10931629

answered Mar 25 at 8:20

eoleol

3,10931629

answered Mar 25 at 8:20

eoleol

3,10931629