https://github.com/ethereumjs/browser-builds

ethereumjs - Browser Builds

This repository contains browser builds of the following ethereumjs libraries:

这个存储库包含以下ethereumjs库的浏览器构建（其实就是将下面的ethereumjs库构造成浏览器能够使用的js文件形式）

They are built using browserify with a known set of working dependencies.

使用带着具有一组已知的工作依赖项的browserify来构建

For every library/build collection there is a larger plain source version also including the source mappings (e.g. ethereumjs-vm-x.x.x.js) and a minified version for use in production (e.g. ethereumjs-vm-x.x.x.min.js).

这里对每个库/构建收集有一个更大的包含资源映射(比如ethereumjs-vm-x.x.x.js) 的纯资源版本，以及在生产时使用的简化版本 (比如ethereumjs-vm-x.x.x.min.js)

Note注意:

This repository was just lately (October 2017) revived. Currently all builds are considered experimental in terms of API stability, functionality and security!

这个存储库最近（2017/10）才恢复使用。目前，从API的稳定性、功能和安全性来看，所有构建都是实验性的

Usage使用

In your web application, include only one of the builds from the dist directory. All exports will be available under the global ethereumjs.

在你的web应用中，只包含来自dist目录之一的构建。在全局变量ethereumjs下，所有的构建都是可用的

Note: all packages expect ECMAScript 6 (ES6) as a minimum environment. From browsers lacking ES6 support, please use a shim (like es6-shim) before including any of the builds from this repo.

注意：所有包都期待使用 ECMAScript 6 (ES6) 作为最小的环境。如果浏览器缺少ES6支持，从该存储库中包含任何构建之前，请使用shim(like es6-shim)

Examples例子

Examples for usage of the browser builds can be found in the examples directory:

vm.html

<!doctype html>

<html lang="en">

<head>

  <meta charset="utf-8">

  <title>EthereumJS VM - Browser Example</title>

</head>

<body>

  <script src="../dist/ethereumjs-vm/ethereumjs-vm-2.3.1.js"></script>

  <script>

    var vm = new ethereumjs.VM()

    var code = '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'

    console.log('Code to be run in the VM:')

    console.log(code)

    vm.on('step', function (data) {

      console.log(data.opcode.name)

    })

    vm.runCode({

      code: ethereumjs.Buffer.Buffer.from(code, 'hex'),

      gasLimit: ethereumjs.Buffer.Buffer.from('ffffffff', 'hex')

    }, function (err, results) {

      console.log('returned: ' + results.return.toString('hex'))

      console.log('gasUsed: ' + results.gasUsed.toString())

      console.log(err)

    })

  </script>

</body>

</html>

Start an http-server from the main directory of the repository to run the examples in the browser.

从存储库的主目录开启 http-server去在浏览器中运行该例子

Build构建

Builds are done using the .js exports compilation files from the src/ directory and using the build.js script from the main directory to create the build in the dist/ folder.

构建的完成需要先从src/文件夹中使用.js输出编译文件，然后使用来自主目录的build.js脚本在dist/文件夹中创建构建

Version numbers for the builds are directly extracted from the versions installed in the local node_modules folder.

构建的版本数目直接从安装在本地的node_modules文件夹的版本中抽取出。

For creating new builds:为了创建新的构建

Change package.json to require desired/up-to-date versions of the libraries 改变package.json去获取想要的/最新版本的库

package.json

{

  "private": true,

  "name": "browser-builds",

  "version": "0.0.0",

  "description": "Browser builds of ethereumjs libraries.",

  "scripts": {

    "build": "node build.js"

  },

  "repository": {

    "type": "git",

    "url": "git+https://github.com/ethereumjs/browser-builds.git"

  },

  "keywords": [

    "ethereum",

    "browser"

  ],

  "author": "Alex Beregszaszi <alex@rtfs.hu>",

  "license": "MIT",

  "bugs": {

    "url": "https://github.com/ethereumjs/browser-builds/issues"

  },

  "homepage": "https://github.com/ethereumjs/browser-builds#readme",

  "dependencies": {//这里写了所有的库，你可以根据你自己的需求进行删减，并更改相应的版本

    "ethereumjs-abi": "^0.6.2",

    "ethereumjs-icap": "^0.3.1",

    "ethereumjs-tx": "^1.3.1",

    "ethereumjs-units": "^0.2.0",

    "ethereumjs-vm": "^2.3.0",

    "ethereumjs-wallet": "^0.6.0"

  },

  "devDependencies": {

    "babel-preset-env": "^1.7.0",

    "babel-preset-react": "^6.24.1",

    "babelify": "^7.3.0",

    "browserify": "^14.4.0",

    "uglifyify": "^4.0.4"

  }

}

　　2.Reinstall/update local node_modules packages 重新安装/更新本地node_modules包

运行npm install

　　3.Run npm run build to generate new set of builds 运行npm run build命令去生成新构建集

userdeMBP:browser-builds-master user$ npm run build

> browser-builds@0.0. build /Users/user/browser-builds-master

> node build.js

***ethereumjs-all***

Creating debug version package dist/ethereumjs-all/ethereumjs-all---.js

Creating minified package dist/ethereumjs-all/ethereumjs-all---.min.js

***ethereumjs-vm***

Creating debug version package dist/ethereumjs-vm/ethereumjs-vm-2.5..js

Creating minified package dist/ethereumjs-vm/ethereumjs-vm-2.5..min.js

***ethereumjs-tx***

Creating debug version package dist/ethereumjs-tx/ethereumjs-tx-1.3..js

Creating minified package dist/ethereumjs-tx/ethereumjs-tx-1.3..min.js

***ethereumjs-icap***

Omitting debug version package dist/ethereumjs-icap/ethereumjs-icap-0.3..js (file exists)

Omitting minified package dist/ethereumjs-icap/ethereumjs-icap-0.3..min.js (file exists)

***ethereumjs-wallet***

Creating debug version package dist/ethereumjs-wallet/ethereumjs-wallet-0.6..js

Creating minified package dist/ethereumjs-wallet/ethereumjs-wallet-0.6..min.js

***ethereumjs-wallet-hd***

Creating debug version package dist/ethereumjs-wallet-hd/ethereumjs-wallet-hd-0.6..js

***ethereumjs-abi***

Omitting debug version package dist/ethereumjs-abi/ethereumjs-abi-0.6..js (file exists)

Omitting minified package dist/ethereumjs-abi/ethereumjs-abi-0.6..min.js (file exists)

Creating minified package dist/ethereumjs-wallet-hd/ethereumjs-wallet-hd-0.6..min.js

***ethereumjs-wallet-thirdparty***

Creating debug version package dist/ethereumjs-wallet-thirdparty/ethereumjs-wallet-thirdparty-0.6..js

Creating minified package dist/ethereumjs-wallet-thirdparty/ethereumjs-wallet-thirdparty-0.6..min.js

然后你的dist文件夹下就会得到你想要的构建了，然后你就能够在页面端使用这些构建了，就像上面的例子一样