b-validate

import bv, { Schema } from 'b-validate'; import zhCN from 'b-validate/es/locale/zh-CN'; // Example for locale // --- Basic Chained Validation --- console.log('--- Basic Chained Validation ---'); bv(123) .number.min(2) .max(10) .collect((error) => { console.log('Basic validation error:', error); // { value: 123, type: 'number', message: '123 is not less than 10' } }); const errorString = bv('b-validate').string.isRequired.match(/Validator/).end; console.log('String validation error:', errorString); // { value: 'b-validate', type: 'string', message: '`b-validate` is not match pattern /Validator/' } // --- Schema Validation --- console.log('\n--- Schema Validation ---'); const userSchema = new Schema({ name: [ { type: 'string', required: true, message: 'Name is required' }, { type: 'string', maxLength: 10, message: 'Max length is 10' }, ], age: [ { type: 'number', min: 2, max: 5, message: 'Age must be between 2 and 5' }, ], email: [{ type: 'email', message: 'Invalid email format' }], custom: [ { validator: (value, callback) => { if (value > 10) { callback('Custom value cannot be greater than 10!'); } }, }, ], asyncField: [ { validator: async (value, callback) => { // Simulate async operation await new Promise(resolve => setTimeout(resolve, 10)); if (value !== 'async-ok') { callback('Async field must be "async-ok"'); } }, }, ], }); // Load a locale (optional) userSchema.messages(zhCN); userSchema.validate( { name: 'John Doe The Third', // Too long age: 24, // Out of range email: 'invalid-email', custom: 15, // Fails custom validation asyncField: 'not-ok' }, (errors) => { console.log('Schema validation errors:', errors); /* Expected output (simplified): * { * name: { message: 'Max length is 10' }, * age: { message: 'Age must be between 2 and 5' }, * email: { message: 'Invalid email format' }, * custom: { message: 'Custom value cannot be greater than 10!' }, * asyncField: { message: 'Async field must be "async-ok"' } * } */ } );