是指在开发过程中,使用class-validator库对类中的某个字段进行验证。class-validator是一个基于装饰器的验证库,可以用于验证类中的属性是否符合指定的规则。 具体步骤如下: 首先,需要安装class-validator库。可以通过npm或者yarn进行安装。 在需要验证的类中,引入class-validator库,并使用装饰器对需要验证的字
问在node js中使用class-validator验证数组对象EN如果empty.here是我的格式，我想验证alcoholeId和alcoholeN...
比如我有个参数叫 classType , 是字符串数组,值只能是 "a" 或者 "b", 也可以同时两个,所以希望设置输入参数的时候只能是这3个 ["a"] ["b"] ["a","b"] ,这个在 class-validator 要如何设置? @IsArray() // @IsEnum(['a', 'b']) 我一开始是这样设置的,但是不行,只 classType = ["a"]...
class-validator 复杂类型校验 在使用class-validator进行参数校验的时候,会遇到[object,object]或[key:object]的情况!刚接触class-validator的小伙伴,遇到这种问题会比较头大(我刚遇到的这种情况也是很头大😂😂!)!废话不多少说,我们直接上代码: 1、数组中嵌套对象型-[object,object,...] 例如:[{self_warehouse...
If your field is an array and you want to perform validation of each item in the array you must specify a special each: true decorator option:import { MinLength, MaxLength } from 'class-validator'; export class Post { @MaxLength(20, { each: true, }) tags: string[]; }...
@IsNotIn(values: any[]) Checks if value is not in a array of disallowed values. 检查值是否不在不允许的值数组中 类型验证装饰器 修饰器描述(英文)描述(中文) @IsBoolean() Checks if a value is a boolean. 是否为布尔值 @IsDate() Checks if the value is a date. 是否为日期 @IsString()...
class-validatorallows you to definecustom validation classes. You might for example validate that a string's length is between given two values: import{Validate,ValidationArguments,ValidatorConstraint,ValidatorConstraintInterface,}from'class-validator'// Implementing the validator:@ValidatorConstraint()export...
: Array<string | Buffer>; ... } I need to validate the input. Strings are urls, buffer is binary. And im not really sure how to even start with class-validator to be able to validate this. Contributor vlapo commented Mar 18, 2020 You have to create your own validator for this ...
function nonEmptyArray<T>(val: T[], name: string) Parameters val T[] name string object(any, string) TypeScript Copy function object(val: any, name: string) Parameters val any name string string(any, string) TypeScript Copy function string(val: any, name: string) Parameters val an...
io.vertx.ext.web.api.validation.impl.SingleValueParameterTypeValidator<String> io.vertx.ext.web.api.validation.impl.StringTypeValidator All Implemented Interfaces: ParameterTypeValidator public class StringTypeValidator extends SingleValueParameterTypeValidator<String> Author: ...