first commit

build/node_modules/is-jpg/index.js

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+'use strict';
+module.exports = function (buf) {
+	if (!buf || buf.length < 3) {
+		return false;
+	}
+
+	return buf[0] === 255 &&
+		buf[1] === 216 &&
+		buf[2] === 255;
+};

build/node_modules/is-jpg/package.json

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+{
+  "_args": [
+    [
+      "is-jpg@1.0.0",
+      "/Users/asciidisco/Desktop/asciidisco.com/build"
+    ]
+  ],
+  "_from": "is-jpg@1.0.0",
+  "_id": "is-jpg@1.0.0",
+  "_inBundle": false,
+  "_integrity": "sha1-KVnBfnNDDbOCZNp1uQ3VTy2G2hw=",
+  "_location": "/is-jpg",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "is-jpg@1.0.0",
+    "name": "is-jpg",
+    "escapedName": "is-jpg",
+    "rawSpec": "1.0.0",
+    "saveSpec": null,
+    "fetchSpec": "1.0.0"
+  },
+  "_requiredBy": [
+    "/imagemin-jpeg-recompress",
+    "/imagemin-jpegoptim",
+    "/imagemin-jpegtran",
+    "/imagemin-mozjpeg"
+  ],
+  "_resolved": "https://registry.npmjs.org/is-jpg/-/is-jpg-1.0.0.tgz",
+  "_spec": "1.0.0",
+  "_where": "/Users/asciidisco/Desktop/asciidisco.com/build",
+  "author": {
+    "name": "Sindre Sorhus",
+    "email": "sindresorhus@gmail.com",
+    "url": "http://sindresorhus.com"
+  },
+  "bugs": {
+    "url": "https://github.com/sindresorhus/is-jpg/issues"
+  },
+  "description": "Check if a Buffer/Uint8Array is a JPEG image",
+  "devDependencies": {
+    "mocha": "*",
+    "read-chunk": "^1.0.0"
+  },
+  "engines": {
+    "node": ">=0.10.0"
+  },
+  "files": [
+    "index.js"
+  ],
+  "homepage": "https://github.com/sindresorhus/is-jpg#readme",
+  "keywords": [
+    "jpg",
+    "jpeg",
+    "image",
+    "img",
+    "pic",
+    "picture",
+    "photo",
+    "type",
+    "detect",
+    "check",
+    "is",
+    "exif",
+    "binary",
+    "buffer",
+    "uint8array",
+    "cli",
+    "bin"
+  ],
+  "license": "MIT",
+  "name": "is-jpg",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/sindresorhus/is-jpg.git"
+  },
+  "scripts": {
+    "test": "mocha"
+  },
+  "version": "1.0.0"
+}

build/node_modules/is-jpg/readme.md

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+# is-jpg [![Build Status](https://travis-ci.org/sindresorhus/is-jpg.svg?branch=master)](https://travis-ci.org/sindresorhus/is-jpg)
+
+> Check if a Buffer/Uint8Array is a [JPEG](http://en.wikipedia.org/wiki/JPEG) image
+
+Used by [image-type](https://github.com/sindresorhus/image-type).
+
+
+## Install
+
+```sh
+$ npm install --save is-jpg
+```
+
+
+## Usage
+
+##### Node.js
+
+```js
+var readChunk = require('read-chunk'); // npm install read-chunk
+var isJpg = require('is-jpg');
+var buffer = readChunk.sync('unicorn.jpg', 0, 3);
+
+isJpg(buffer);
+//=> true
+```
+
+##### Browser
+
+```js
+var xhr = new XMLHttpRequest();
+xhr.open('GET', 'unicorn.jpg');
+xhr.responseType = 'arraybuffer';
+
+xhr.onload = function () {
+	isJpg(new Uint8Array(this.response));
+	//=> true
+};
+
+xhr.send();
+```
+
+
+## API
+
+### isJpg(buffer)
+
+Accepts a Buffer (Node.js) or Uint8Array.
+
+It only needs the first 3 bytes.
+
+
+## License
+
+MIT © [Sindre Sorhus](http://sindresorhus.com)