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b-validate
Advanced tools
Changelog
1.5.3 (2023-08-02)
Readme
Javascript type validate.
npm i b-validate
import bv from 'b-validate';
bv(123)
.number.min(2)
.max(10)
.collect((error) => {
console.log(error); // { value: 123, type: 'number', message: '123 is not less than 10' }
// if no error, error equal to null
});
// or get error message like this:
const error = bv('b-validate').string.isRequired.match(/Validator/).end;
// { value: 'b-validate', type: 'string', message: '`b-validate` is not match pattern /Validator/' }
import { Schema } from 'b-validate';
const schema = new Schema({
name: [
{
type: 'string',
required: true,
message: '必填字段',
},
{
type: 'string',
maxLength: 10,
message: '最大长度是10',
},
],
age: [
{
type: 'number',
min: 2,
max: 5,
message: '在2和5之间',
},
],
email: [
{
type: 'email',
message: '邮箱格式不对',
},
],
ip: [
{
type: 'ip',
message: 'ip格式不对',
},
],
url: [
{
type: 'url',
message: 'url格式不对',
},
],
custom: [
{
validator: (value, callback) => {
if (value > 10) {
callback('不能大于10!');
}
},
},
],
// Async validate
async: [
{
validator: async (value, callback) => {
if (value > 10) {
callback('不能大于10!');
}
},
},
],
});
schema.validate(
{
name: 'pengjiyuan is a nice boy',
age: 24,
email: 'pengjiyuan@bytedance.com',
ip: '127.0.0.1',
url: 'https://bytedancecom',
custom: 20,
async: 20,
},
(errors) => {
console.log(errors);
/*
* {
* value: 'pengjiyuan is a nice boy', type: 'string', message: '最大长度是10' },
* age: { value: 24, type: 'number', message: '在2和5之间' },
* url: { value: 'https://bytedancecom', type: 'url', message: 'url格式不对' },
* custom: { value: 20, type: 'custom', message: '不能大于10!' }
* }
*/
}
);
Customize the validate messages by options.validateMessages
or (new schema({})).messages
/ bv.setGlobalConfig({ validateMessages: {} })
.
import bv from 'b-validate';
// set validateMessages for specific validator
const error = bv('', {validateMessages: {required: '必须有值'}}).string.isRequired.end.message;
// output: 必须有值
import bv from 'b-validate';
// set global validatemessages
bv.setGlobalConfig({ validateMessages: {required: '必须有值'} });
const error = bv('').string.isRequired.end.message;
// output: 必须有值
import bv from 'b-validate';
const error = bv('', {validateMessages: {required: '必须有值'}}).string.isRequired.end.message;
// output: 必须有值
import { Schema } from 'b-validate';
import zhCN from 'b-validate/es/locale/zh-CN';
const schema = new Schema({
name: [{ type: 'string', length: 4 }],
});
schema.messages(zhCN);
schema.validate({name: 'aaa'}, errors => {
console.log(errors);
// {name: { message: '字符数必须是 4' }}
})
Validate string's max length.
Validate string's min length.
Validate string's length
Validate whether string is match regex pattern.
Validate whether string is uppercase.
Validate whether string is lowercase.
bv('vvvv').string.isRequired.minLength(2).maxLength(10).lowercase.end; // pass
Minimum value.
Maximum value.
Equal to number.
In range min ~ max.
Is it a positive number?
Is it a negative number?
bv(123).number.min(2).max(250).positive.end; // pass
Validate array's length
Whether array includes some array.
Deep equal to other array
bv([1, 2, 3]).array.length(3).includes([1, 2]).deepEqual([1, 2, 3]).end; // pass
Object has some keys?
Deep equal to other object.
Empty object.
bv({ a: 1, b: 2 }).object.hasKeys(['a', 'b']).deepEqual({ a: 1, b: 2 }).not.empty.end; // pass
bv('abc@qq.com').type.email.end; // pass
bv('https://baidu.com').type.url.end; // pass
bv('127.0.0.1').type.ip.end; // pass
bv('xxxxxx').custom.validate(
(value, callback) => {
if (value !== 'x') {
callback(`Expect x but got ${value}`);
}
},
(error) => {
console.log(error); // { value: 'xxxxxx', type: 'string', message: 'Expect x but got xxxxxx' }
}
);
bv('xxxxxx').custom.validate(
async (value, callback) => {
const apiValue = api.getValue();
if (value !== apiValue) {
callback(`Expect x but got ${apiValue}`);
}
},
(error) => {
console.log(error);
}
);
FAQs
Javascript type validate
The npm package b-validate receives a total of 11,420 weekly downloads. As such, b-validate popularity was classified as popular.
We found that b-validate demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 2 open source maintainers collaborating on the project.
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