<img align="right" alt="Ajv logo" width="160" src="http://epoberezkin.github.io/ajv/images/ajv_logo.png">
# Ajv: Another JSON Schema Validator
The fastest JSON Schema validator for Node.js and browser with draft 6 support.
[![Build Status](https://travis-ci.org/epoberezkin/ajv.svg?branch=master)](https://travis-ci.org/epoberezkin/ajv)
[![npm version](https://badge.fury.io/js/ajv.svg)](https://www.npmjs.com/package/ajv)
[![npm@beta](https://img.shields.io/npm/v/ajv/beta.svg)](https://github.com/epoberezkin/ajv/tree/beta)
[![npm downloads](https://img.shields.io/npm/dm/ajv.svg)](https://www.npmjs.com/package/ajv)
[![Coverage Status](https://coveralls.io/repos/epoberezkin/ajv/badge.svg?branch=master&service=github)](https://coveralls.io/github/epoberezkin/ajv?branch=master)
[![Greenkeeper badge](https://badges.greenkeeper.io/epoberezkin/ajv.svg)](https://greenkeeper.io/)
[![Gitter](https://img.shields.io/gitter/room/ajv-validator/ajv.svg)](https://gitter.im/ajv-validator/ajv)
__Please note__: Ajv [version 6](https://github.com/epoberezkin/ajv/tree/beta) with [JSON Schema draft-07](http://json-schema.org/work-in-progress) support is released. Use `npm install ajv@beta` to install.
## Using version 5
[JSON Schema draft-06](https://trac.tools.ietf.org/html/draft-wright-json-schema-validation-01) is published.
[Ajv version 5.0.0](https://github.com/epoberezkin/ajv/releases/tag/5.0.0) that supports draft-06 is released. It may require either migrating your schemas or updating your code (to continue using draft-04 and v5 schemas).
__Please note__: To use Ajv with draft-04 schemas you need to explicitly add meta-schema to the validator instance:
```javascript
ajv.addMetaSchema(require('ajv/lib/refs/json-schema-draft-04.json'));
```
## Contents
- [Performance](#performance)
- [Features](#features)
- [Getting started](#getting-started)
- [Frequently Asked Questions](https://github.com/epoberezkin/ajv/blob/master/FAQ.md)
- [Using in browser](#using-in-browser)
- [Command line interface](#command-line-interface)
- Validation
- [Keywords](#validation-keywords)
- [Formats](#formats)
- [Combining schemas with $ref](#ref)
- [$data reference](#data-reference)
- NEW: [$merge and $patch keywords](#merge-and-patch-keywords)
- [Defining custom keywords](#defining-custom-keywords)
- [Asynchronous schema compilation](#asynchronous-schema-compilation)
- [Asynchronous validation](#asynchronous-validation)
- Modifying data during validation
- [Filtering data](#filtering-data)
- [Assigning defaults](#assigning-defaults)
- [Coercing data types](#coercing-data-types)
- API
- [Methods](#api)
- [Options](#options)
- [Validation errors](#validation-errors)
- [Related packages](#related-packages)
- [Packages using Ajv](#some-packages-using-ajv)
- [Tests, Contributing, History, License](#tests)
## Performance
Ajv generates code using [doT templates](https://github.com/olado/doT) to turn JSON schemas into super-fast validation functions that are efficient for v8 optimization.
Currently Ajv is the fastest and the most standard compliant validator according to these benchmarks:
- [json-schema-benchmark](https://github.com/ebdrup/json-schema-benchmark) - 50% faster than the second place
- [jsck benchmark](https://github.com/pandastrike/jsck#benchmarks) - 20-190% faster
- [z-schema benchmark](https://rawgit.com/zaggino/z-schema/master/benchmark/results.html)
- [themis benchmark](https://cdn.rawgit.com/playlyfe/themis/master/benchmark/results.html)
Performance of different validators by [json-schema-benchmark](https://github.com/ebdrup/json-schema-benchmark):
[![performance](https://chart.googleapis.com/chart?chxt=x,y&cht=bhs&chco=76A4FB&chls=2.0&chbh=32,4,1&chs=600x416&chxl=-1:|djv|ajv|json-schema-validator-generator|jsen|is-my-json-valid|themis|z-schema|jsck|skeemas|json-schema-library|tv4&chd=t:100,98,72.1,66.8,50.1,15.1,6.1,3.8,1.2,0.7,0.2)](https://github.com/ebdrup/json-schema-benchmark/blob/master/README.md#performance)
## Features
- Ajv implements full JSON Schema [draft 6](http://json-schema.org/) and draft 4 standards:
- all validation keywords (see [JSON Schema validation keywords](https://github.com/epoberezkin/ajv/blob/master/KEYWORDS.md))
- full support of remote refs (remote schemas have to be added with `addSchema` or compiled to be available)
- support of circular references between schemas
- correct string lengths for strings with unicode pairs (can be turned off)
- [formats](#formats) defined by JSON Schema draft 4 standard and custom formats (can be turned off)
- [validates schemas against meta-schema](#api-validateschema)
- supports [browsers](#using-in-browser) and Node.js 0.10-8.x
- [asynchronous loading](#asynchronous-schema-compilation) of referenced schemas during compilation
- "All errors" validation mode with [option allErrors](#options)
- [error messages with parameters](#validation-errors) describing error reasons to allow creating custom error messages
- i18n error messages support with [ajv-i18n](https://github.com/epoberezkin/ajv-i18n) package
- [filtering data](#filtering-data) from additional properties
- [assigning defaults](#assigning-defaults) to missing properties and items
- [coercing data](#coercing-data-types) to the types specified in `type` keywords
- [custom keywords](#defining-custom-keywords)
- draft-6 keywords `const`, `contains` and `propertyNames`
- draft-6 boolean schemas (`true`/`false` as a schema to always pass/fail).
- keywords `switch`, `patternRequired`, `formatMaximum` / `formatMinimum` and `formatExclusiveMaximum` / `formatExclusiveMinimum` from [JSON-schema extension proposals](https://github.com/json-schema/json-schema/wiki/v5-Proposals) with [ajv-keywords](https://github.com/epoberezkin/ajv-keywords) package
- [$data reference](#data-reference) to use values from the validated data as values for the schema keywords
- [asynchronous validation](#asynchronous-validation) of custom formats and keywords
Currently Ajv is the only validator that passes all the tests from [JSON Schema Test Suite](https://github.com/json-schema/JSON-Schema-Test-Suite) (according to [json-schema-benchmark](https://github.com/ebdrup/json-schema-benchmark), apart from the test that requires that `1.0` is not an integer that is impossible to satisfy in JavaScript).
## Install
```
npm install ajv
```
or to install [version 6](https://github.com/epoberezkin/ajv/tree/beta):
```
npm install ajv@beta
```
## <a name="usage"></a>Getting started
Try it in the Node.js REPL: https://tonicdev.com/npm/ajv
The fastest validation call:
```javascript
var Ajv = require('ajv');
var ajv = new Ajv(); // options can be passed, e.g. {allErrors: true}
var validate = ajv.compile(schema);
var valid = validate(data);
if (!valid) console.log(validate.errors);
```
or with less code
```javascript
// ...
var valid = ajv.validate(schema, data);
if (!valid) console.log(ajv.errors);
// ...
```
or
```javascript
// ...
var valid = ajv.addSchema(schema, 'mySchema')
.validate('mySchema', data);
if (!valid) console.log(ajv.errorsText());
// ...
```
See [API](#api) and [Options](#options) for more details.
Ajv compiles schemas to functions and caches them in all cases (using schema serialized with [fast-json-stable-stringify](https://github.com/epoberezkin/fast-json-stable-stringify) or a custom function as a key), so that the next time the same schema is used (not necessarily the same object instance) it won't be compiled again.
The best performance is achieved when using compiled functions returned by `compile` or `getSchema` methods (there is no additional function call).
__Please note__: every time a validation function or `ajv.validate` are called `errors` property is overwritten. You need to copy `errors` array reference to another var
没有合适的资源?快使用搜索试试~ 我知道了~
node-v12.16.2-win-x64.zip
共2000个文件
js:1496个
md:682个
json:555个
需积分: 50 24 下载量 193 浏览量
2020-04-12
21:14:59
上传
评论
收藏 17.88MB ZIP 举报
温馨提示
node.js被称为服务器端的javascript,熟悉javascript的开发人员现在也可以用熟悉的开发脚本开发服务器端应用了!采用php\java\等语言开发的人员也可以试试node的直接高效,作为补充
资源推荐
资源详情
资源评论
收起资源包目录
node-v12.16.2-win-x64.zip (2000个子文件)
styles.e93b5499b63484750fba.css 5KB
base.css 5KB
main.css 5KB
base.css 5KB
prettify.css 677B
prettify.css 677B
index.html 167KB
index.html 122KB
index.html 80KB
index.html 77KB
index.html 76KB
index.html 71KB
index.html 59KB
index.html 57KB
index.html 54KB
index.html 53KB
index.html 52KB
index.html 51KB
index.html 51KB
index.html 51KB
index.html 50KB
index.html 49KB
index.html 49KB
index.html 49KB
index.html 49KB
index.html 49KB
index.html 48KB
index.html 47KB
index.html 47KB
index.html 47KB
index.html 47KB
index.html 46KB
index.html 46KB
index.html 46KB
index.html 46KB
index.html 46KB
index.html 46KB
index.html 46KB
index.html 45KB
index.html 45KB
index.html 45KB
index.html 45KB
index.html 44KB
index.html 44KB
index.html 44KB
index.html 44KB
index.html 44KB
index.html 43KB
index.html 43KB
index.html 43KB
index.html 43KB
index.html 43KB
index.html 43KB
index.html 42KB
index.html 42KB
index.html 42KB
index.html 42KB
index.html 42KB
index.html 42KB
index.html 42KB
index.html 42KB
index.html 41KB
index.html 41KB
index.html 41KB
index.html 41KB
index.html 41KB
index.html 41KB
index.html 41KB
index.html 41KB
index.html 40KB
index.html 40KB
index.html 40KB
index.html 40KB
index.html 40KB
index.html 40KB
index.html 40KB
index.html 40KB
index.html 40KB
index.html 40KB
index.html 40KB
index.html 40KB
index.html 39KB
mute.js.html 15KB
LICENSE.html 7KB
index.html 4KB
index.html 4KB
index.html 3KB
index.html 3KB
index.js.html 2KB
example.html 211B
regenerator.min.js 957KB
ajv.bundle.js 262KB
nodent.min.js 223KB
bluebird.js 182KB
psl.js 138KB
bluebird.core.js 122KB
psl.min.js 121KB
ajv.min.js 113KB
bluebird.min.js 79KB
nacl-fast.js 63KB
共 2000 条
- 1
- 2
- 3
- 4
- 5
- 6
- 20
资源评论
波米网
- 粉丝: 2
- 资源: 11
上传资源 快速赚钱
- 我的内容管理 展开
- 我的资源 快来上传第一个资源
- 我的收益 登录查看自己的收益
- 我的积分 登录查看自己的积分
- 我的C币 登录后查看C币余额
- 我的收藏
- 我的下载
- 下载帮助
最新资源
资源上传下载、课程学习等过程中有任何疑问或建议,欢迎提出宝贵意见哦~我们会及时处理!
点击此处反馈
安全验证
文档复制为VIP权益,开通VIP直接复制
信息提交成功