nestclass-validator验证修饰器中文文档

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nestclass-validator验证修饰器中⽂⽂档
验证修饰器
通⽤验证
修饰器描述(英⽂)描述(中⽂)
@IsDefined(value: any)Checks if value is defined (!== undefined, !== null). This is the only decorator that
ignores skipMissingProperties option.
检查是否定义了值 (!== undefined, !== null)。

这是唯⼀忽略
skipMissingProperties选项的装饰程序
@IsOptional()Checks if given value is empty (=== null, === undefined) and if so, ignores all the
validators on the property.
检查给定值是否为空(=== null, === undefined) ,如果是,则忽略属
性上的所有验证程序
@Equals(comparison:
any)
Checks if value equals ("===") comparison.检查值是否相等(“===”)⽐较
@NotEquals(comparison:
any)
Checks if value not equal ("!==") comparison.检查值是否不相等(“!==”)⽐较
@IsEmpty()Checks if given value is empty (=== ‘’, === null, === undefined).检查给定值是否为空(=== ‘’, === null, === undefined)
@IsNotEmpty()Checks if given value is not empty (!== ‘’, !== null, !== undefined).检查给定值是否不为空 (!== ‘’, !== null, !== undefined)
@IsIn(values: any[])Checks if value is in a array of allowed values.检查值是否在允许值的数组中
@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()Checks if the string is a string.是否为字符串
@IsNumber(options: IsNumberOptions)Checks if the value is a number.是否为数字
@IsInt()Checks if the value is an integer number.是否为整数
@IsArray()Checks if the value is an array是否为数组
@IsEnum(entity: object)Checks if the value is an valid enum是否是有效的枚举
Number validation decorators
数字验证装饰器
修饰器描述(英⽂)描述(中⽂)
@IsDivisibleBy(num: number)Checks if the value is a number that’s divisible by another.是否是可以被另⼀个数整除的数
@IsPositive()Checks if the value is a positive number greater than zero.是否是⼤于0的整数
@IsNegative()Checks if the value is a negative number smaller than zero.是否是⼩于0的整数
@Min(min: number)Checks if the given number is greater than or equal to given number.是否⼤于等于给定的数
@Max(max: number)Checks if the given number is less than or equal to given number.是否⼩于等于给定的数
⽇期验证装饰器
修饰器描述(英⽂)描述(中⽂)
@MinDate(date: Date)Checks if the value is a date that’s after the specified date.是否在指定⽇期之后
@MaxDate(date: Date)Checks if the value is a date that’s before the specified date.是否在指定⽇期之前
字符串类型验证装饰器
修饰器描述(英⽂)描述(中⽂)
@IsBooleanString()
Checks if a string is a boolean (e.g. is “true” or “false”).是否为布尔值(例如“true”或“false”)
@IsDateString()Alias for @IsISO8601().@IsISO8601()的别名
@IsNumberString(options?: IsNumericOptions)Checks if a string is a number.检查字符串是否为数字
字符串验证装饰器
修饰器描述(英⽂)描述(中⽂)@Contains(seed: string)Checks if the string contains the seed.是否包含种⼦
@NotContains(seed: string)Checks if the string not contains the seed.是否不包含种⼦
@IsAlpha()Checks if the string contains only letters (a-zA-Z).是否只包含字母
@IsAlphanumeric()Checks if the string contains only letters and numbers.是否只包含字母和数字
@IsDecimal(options?: IsDecimalOptions)Checks if the string is a valid decimal value. Default IsDecimalOptions
are force_decimal=False, decimal_digits: '1,', locale: 'en-US'
是否为有效的⼗进制值。

默认的IsDecimalOptions是
force_decimal=False,decimal_digits:‘1’,locale:‘en-
US’
@IsAscii()Checks if the string contains ASCII chars only.是否只包含ASCII字符
@IsBase32()Checks if a string is base32 encoded.是否是base32编码的
@IsBase64()Checks if a string is base64 encoded.是否是base64编码的
@IsIBAN()Checks if a string is a IBAN (International Bank Account Number).是否为IBAN(国际银⾏帐号)
@IsBIC()Checks if a string is a BIC (Bank Identification Code) or SWIFT code.是BIC(银⾏识别码)还是SWIFT码
@IsByteLength(min: number,
max?: number)
Checks if the string’s length (in bytes) falls in a range.长度(以字节为单位)是否在某个范围内@IsCreditCard()Checks if the string is a credit card.是否为信⽤卡
@IsCurrency(options?:
IsCurrencyOptions)
Checks if the string is a valid currency amount.是否为有效的货币⾦额
@IsEthereumAddress()Checks if the string is an Ethereum address using basic regex. Does not validate address
checksums.是否是以太坊地址。

不验证地址校验和
@IsBtcAddress()Checks if the string is a valid BTC address.是否为有效的BTC地址
@IsDataURI()Checks if the string is a data uri format.是否为数据uri格式
@IsEmail(options?:
IsEmailOptions)
Checks if the string is an email.是否为电⼦邮件
@IsFQDN(options?:
IsFQDNOptions)
Checks if the string is a fully qualified domain name (e.g. ).是否是完全限定的域名(例如)@IsFullWidth()Checks if the string contains any full-width chars.是否包含任何全⾓字符
@IsHalfWidth()Checks if the string contains any half-width chars.是否包含任何半⾓字符
@IsVariableWidth()Checks if the string contains a mixture of full and half-width chars.是否包含全半⾓字符
@IsHexColor()Checks if the string is a hexadecimal color.是否为⼗六进制颜⾊
@IsHSLColor()Checks if the string is an HSL color based on .是否是基于CSS Colors Level 4规范的HSL颜⾊@IsRgbColor(options?:
IsRgbOptions)
Checks if the string is a rgb or rgba color.是rgb还是rgba颜⾊
@IsIdentityCard(locale?: string)Checks if the string is a valid identity card code.是否是有效的⾝份证代码(估计是国外的⾝份证格式)
@IsPassportNumber(countryCode?:
string)
Checks if the string is a valid passport number relative to a specific country code.是否是相对于特定国家代码的有效护照号码@IsPostalCode(locale?: string)Checks if the string is a postal code.是否是邮政编码
@IsHexadecimal()Checks if the string is a hexadecimal number.是否为⼗六进制数
@IsOctal()Checks if the string is a octal number.是否为⼋进制数
@IsMACAddress(options?:
IsMACAddressOptions)
Checks if the string is a MAC Address.是否为MAC地址
@IsIP(version?: "4"\|"6")Checks if the string is an IP (version 4 or 6).是否为IP(版本4或6)
@IsPort()Checks if the string is a valid port number.是否为有效的端⼝号
@IsISBN(version?: "10"\|"13")Checks if the string is an ISBN (version 10 or 13).是否为ISBN(版本10或13)
@IsEAN()Checks if the string is an if the string is an EAN (European Article Number).是否为EAN(欧洲商品编号)
@IsISIN()Checks if the string is an ISIN (stock/security identifier).是否为ISIN(股票/安全标识符)
@IsISO8601(options?: IsISO8601Options)Checks if the string is a valid ISO 8601 date format. Use the option strict = true for additional checks
for a valid date.
是否为有效的ISO 8601⽇期格式。

对于有效⽇期的其
他检查,请使⽤选项strict=true。

@IsJSON()Checks if the string is valid JSON.是否为有效的JSON
@IsJWT()Checks if the string is valid JWT.是否为有效的JWT
@IsObject()Checks if the object is valid Object (null, functions, arrays will return false).是否为有效对象(null、函数、数组将返回false)@IsNotEmptyObject()Checks if the object is not empty.对象是否为空
@IsLowercase()Checks if the string is lowercase.是否为⼩写
@IsLatLong()Checks if the string is a valid latitude-longitude coordinate in the format lat, long.是否为lat,long格式的有效经纬度坐标
@IsLatitude()Checks if the string or number is a valid latitude coordinate.检查字符串或数字是否是有效的纬度坐标
@IsLongitude()Checks if the string or number is a valid longitude coordinate.检查字符串或数字是否为有效的经度坐标
@IsMobilePhone(locale: string)Checks if the string is a mobile phone number.是否是移动电话号码
@IsISO31661Alpha2()Checks if the string is a valid ISO 3166-1 alpha-2 officially assigned country code.是否是有效的iso3166-1alpha-2官⽅指定的国家代码。

@IsISO31661Alpha3()Checks if the string is a valid ISO 3166-1 alpha-3 officially assigned country code.是否是有效的iso3166-1alpha-3官⽅指定的国家代码。

@IsLocale()Checks if the string is a locale.是否为区域设置
@IsPhoneNumber(region: string)Checks if the string is a valid phone numberusing libphonenumber-js.是否是有效的电话号码
@IsMongoId()Checks if the string is a valid hex-encoded representation of a MongoDB ObjectId.是否是MongoDB ObjectId的有效⼗六进制编码表⽰形式
@IsMultibyte()Checks if the string contains one or more multibyte chars.是否包含⼀个或多个多字节字符
@IsNumberString(options?:
IsNumericOptions)
Checks if the string is numeric.是否包含任何代理项对字符
@IsSurrogatePair()Checks if the string contains any surrogate pairs chars.是否包含任何代理项对字符
@IsUrl(options?: IsURLOptions)Checks if the string is an url.是否为url
@IsMagnetURI()Checks if the string is a .是否为magneturi格式
@IsUUID(version?:
"3"\|"4"\|"5"\|"all")
Checks if the string is a UUID (version 3, 4, 5 or all ).是否是UUID(version 3、4、5或all)@IsFirebasePushId()Checks if the string is a 是否为Firebase Push ID
@IsUppercase()Checks if the string is uppercase.是否为⼤写
@Length(min: number, max?:
number)
Checks if the string’s length falls in a range.符串的长度是否在某个范围内
@MinLength(min: number)Checks if the string’s length is not less than given number.字符串的长度是否不⼩于给定的数字@MaxLength(max: number)Checks if the string’s length is not more than given number.字符串的长度是否不⼤于给定的数字
@Matches(pattern: RegExp, modifiers?: string)Checks if string matches the pattern. Either matches(‘foo’, /foo/i) or matches(‘foo’, ‘foo’, ‘i’).是否与模式匹配,匹配(‘foo’,/foo/i)或匹配
(‘foo’,‘foo’,‘i’)
@IsMilitaryTime()Checks if the string is a valid representation of military time in the format HH:MM.是否是HH:MM格式的有效军事时间表⽰形式
@IsHash(algorithm: string)Checks if the string is a hash The following types are
supported:md4, md5, sha1, sha256, sha384, sha512, ripemd128, ripemd160, tiger128, tiger160, tiger192, crc32, crc32b.
是否是散列,以下类型是supported:md4、md5、
sha1、sha256、sha384、sha512、ripemd128、
ripemd160、tiger128、tiger128、tiger192、crc32、
crc32b。

@IsMimeType()Checks if the string matches to a valid format是否与有效的MIME类型格式匹配
@IsSemVer()Checks if the string is a Semantic Versioning Specification (SemVer).是否为语义版本控制规范(SemVer)@IsISSN(options?: IsISSNOptions)Checks if the string is a ISSN.是否为ISSN
@IsISRC()Checks if the string is a .是否为ISRC
@IsRFC3339()Checks if the string is a valid date.是否为有效的RFC 3339⽇期修饰器描述(英⽂)描述(中⽂)
数组验证装饰器
修饰器描述(英⽂)描述(中⽂)
@ArrayContains(values:
any[])
Checks if array contains all values from the given array of values.是否包含给定值数组中的所有值
@ArrayNotContains(values:
any[])
Checks if array does not contain any of the given values.是否不包含任何给定值
@ArrayNotEmpty()Checks if given array is not empty.是否为空
@ArrayMinSize(min:
number)
Checks if the array’s length is greater than or equal to the specified number.数组的长度是否⼤于或等于指定的数字
@ArrayMaxSize(max:Checks if the array’s length is less or equal to the specified number.数组的长度是否⼩于或等于指定的数字
number)
@ArrayUnique(identifier?: (o) => any)Checks if all array’s values are unique. Comparison for objects is reference-based. Optional
function can be speciefied which return value will be used for the comparsion.
所有数组的值是否唯⼀。

对象的⽐较是基于引⽤
的。

可选函数可以指定⽤于⽐较的返回值
修饰器描述(英⽂)描述(中⽂)
对象验证装饰器
修饰器描述(英⽂)描述(中⽂)
@IsInstance(value: any)Checks if the property is an instance of the passed value.属性是否是传递值的实例
其他验证装饰器
修饰器描述(英⽂)描述(中⽂)
@Allow()Prevent stripping off the property when no other constraint is specified for it.防⽌在没有为属性指定其他约束时剥离该属性。

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