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const map = (array, func) => (
  array.map(func)
);

const flatMap = (array, func) => (
  array.reduce((result, element) => (
    result.concat(func(element))
  ), [])
);

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译自 jQuery Plugins / Authoring

创建插件

---

看来 jQuery 你已经用得很爽了，想学习如何自己编写插件。非常好，这篇文档正适合你。用插件和方法来扩展 jQuery 非常强大，把最聪明的功能封装到插件中可以为你及团队节省大量开发时间。

开始

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@Component({
    selector: 'spinner',
    template: `<h1>spinner</h1>` // This will be displayed while loading.
})
class Spinner {
}

@Directive({
    selector: "[loading]",
    inputs: ["loading"],

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Select all and delete (actually move to buffer)
:%d

Select all and copy to buffer
:%y

Use p to paste the buffer.

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Provider	Singleton	Instantiable	Configurable
Constant	Yes	No	No
Value	Yes	No	No
Service	Yes	No	No
Factory	Yes	Yes	No
Decorator	Yes	No?	No
Provider	Yes	Yes	Yes

Constant

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Fixing npm On Mac OS X for Homebrew Users

If you just want to fix the issue quickly, scroll down to the "solution" section below.

Explanation of the issue

If you're a Homebrew user and you installed node via Homebrew, there is a major philosophical issue with the way Homebrew and NPM work together. If you install node with Homebrew and then try to do npm update npm -g, you may see an error like this:

$ npm update npm -g

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Problem

• Using emmet in jsx files
• Emmet expands text when js autocomplete needed
• Using className instead of class

How it works

• Install plugin RegReplace
• Install plugin Chain Of Command

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FROM ubuntu:14.04

MAINTAINER Pan Jiabang, panjiabang@gmail.com

RUN \
  # use aliyun's mirror for better download speed
  sed -i 's/archive.ubuntu.com/mirrors.aliyun.com/g' /etc/apt/sources.list && \
  apt-get update && \
  apt-get install -y nodejs curl git-core && \
  # use nodejs as node 

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# JS files
JS_FINAL = js/project-name-all.js

JS_TARGETS = js/file1.js \
             js/file2.js \
             js/file3.js

# CSS files
CSS_FINAL = css/project-name-all.css
STYLUS_TARGETS = css/file1.styl \

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_.mixin({

	// This will parse a delimited string into an array of
	// arrays. The default delimiter is the comma, but this
	// can be overriden in the second argument.
	CSVtoJSON: function( strData, strDelimiter ){
		// Check to see if the delimiter is defined. If not,
		// then default to comma.
		strDelimiter = (strDelimiter || ",");
		// FIX: add an ending carriage return if missing