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app_vue/node_modules/arch/README.md

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+# arch [![travis][travis-image]][travis-url] [![npm][npm-image]][npm-url] [![downloads][downloads-image]][downloads-url] [![javascript style guide][standard-image]][standard-url]
+
+[travis-image]: https://img.shields.io/travis/feross/arch/master.svg
+[travis-url]: https://travis-ci.org/feross/arch
+[npm-image]: https://img.shields.io/npm/v/arch.svg
+[npm-url]: https://npmjs.org/package/arch
+[downloads-image]: https://img.shields.io/npm/dm/arch.svg
+[downloads-url]: https://npmjs.org/package/arch
+[standard-image]: https://img.shields.io/badge/code_style-standard-brightgreen.svg
+[standard-url]: https://standardjs.com
+
+### Better `os.arch()` for node and the browser -- detect OS architecture
+
+[![Sauce Test Status](https://saucelabs.com/browser-matrix/arch2.svg)](https://saucelabs.com/u/arch2)
+
+This module is used by [WebTorrent Desktop](http://webtorrent.io/desktop) to
+determine if the user is on a 32-bit vs. 64-bit operating system to offer the
+right app installer.
+
+In Node.js, the `os.arch()` method (and `process.arch` property) returns a string
+identifying the operating system CPU architecture **for which the Node.js binary
+was compiled**.
+
+This is not the same as the **operating system CPU architecture**. For example,
+you can run Node.js 32-bit on a 64-bit OS. In that situation, `os.arch()` will
+return a misleading 'x86' (32-bit) value, instead of 'x64' (64-bit).
+
+Use this package to get the actual operating system CPU architecture.
+
+**BONUS: This package works in the browser too.**
+
+## install
+
+```
+npm install arch
+```
+
+## usage
+
+```js
+var arch = require('arch')
+console.log(arch()) // always returns 'x64' or 'x86'
+```
+
+In the browser, there is no spec that defines where this information lives, so we
+check all known locations including `navigator.userAgent`, `navigator.platform`,
+and `navigator.cpuClass` to make a best guess.
+
+If there is no *affirmative indication* that the architecture is 64-bit, then
+32-bit will be assumed. This makes this package perfect for determining what
+installer executable to offer to desktop app users. If there is ambiguity, then
+the user will get the 32-bit installer, which will work fine even for a user with
+a 64-bit OS.
+
+For reference, `x64` means 64-bit and `x86` means 32-bit.
+
+Here is some history behind these naming conventions:
+
+- https://en.wikipedia.org/wiki/X86
+- https://en.wikipedia.org/wiki/IA-32
+- https://en.wikipedia.org/wiki/X86-64
+
+## Node.js proposal - `os.sysarch()`
+
+Note: There is
+[a proposal](https://github.com/nodejs/node-v0.x-archive/issues/2862#issuecomment-103942051)
+to add this functionality to Node.js as `os.sysarch()`.
+
+## license
+
+MIT. Copyright (c) [Feross Aboukhadijeh](http://feross.org).