LeoHeo

var, let, const 차이점은?

• var는 function-scoped이고, let, const는 block-scoped입니다.

• function-scoped와 block-scoped가 무슨말이냐?

var(function-scoped)

jsfiddle 참고주소

JohannesRudolph

import { fakeAsync, tick } from '@angular/core/testing';

import { Observable } from 'rxjs/Observable';
import 'rxjs/add/observable/interval';
import 'rxjs/add/operator/takeWhile';

import { TimeAgoPipe } from './time-ago.pipe';
import { WrappedValue } from '@angular/core';

// Learning

xx4159

Migrate Mongodb to PostgreSQL

목적

• 사용자의 로컬 테스트를 목적으로 쓰여진 내용입니다.
• mac osx에서 진행했으며, ubuntu 나 centos같은 다른 리눅스 버전에서는 다를 수 있음!
• This is FOR OSX
• I hope we collaborate.

Prerequire

• postgreSQL install.
• mongodb가 replica setting.

paulirish

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics

• elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent

thewarpaint

// Based on http://stackoverflow.com/questions/1571374/converting-values-to-unit-prefixes-in-jsp-page.
// The inner filter function can be used standalone.

angular.module('Utils')
  .filter('thousandSuffix', function () {
    return function (input, decimals) {
      var exp, rounded,
        suffixes = ['k', 'M', 'G', 'T', 'P', 'E'];

      if(window.isNaN(input)) {

stephenparish

Commit Message Conventions

These rules are adopted from the AngularJS commit conventions.

• Goals
• Generating CHANGELOG.md
  • Recognizing unimportant commits
  • Provide more information when browsing the history
• Format of the commit message
• Subject line

KittyGiraudel

// Sass utilities
@import "helpers/variables";
@import "helpers/functions";
@import "helpers/mixins";
@import "helpers/placeholders";

// Vendors and external stylesheets
@import "vendors/bootstrap";
@import "vendors/jquery-ui";

caike

#Node.js and the Event Loop

Node.js is a framework for writing server-side JavaScript applications. It is built on top of the V8 JavaScript runtime and uses an event-driven, non-blocking I/O model that makes it perfectly suited for data-intensive real-time applications.

This blog post will describe what non-blocking I/O means and how working with the event loop can help your applications be more efficient.

##The Restaurant

"This [non-blocking I/O] model simplifies access to slow resources in a scalable way that is intuitive to JavaScript programmers and easy to learn for everyone else." - Node Up and Running.

paulirish

// http://paulirish.com/2011/requestanimationframe-for-smart-animating/
// http://my.opera.com/emoller/blog/2011/12/20/requestanimationframe-for-smart-er-animating

// requestAnimationFrame polyfill by Erik Möller. fixes from Paul Irish and Tino Zijdel

// MIT license

(function() {
    var lastTime = 0;
    var vendors = ['ms', 'moz', 'webkit', 'o'];

lxneng

install PostgreSQL 9 in Mac OSX via Homebrew


Mac OS X Snow Leopard
System Version: Mac OS X 10.6.5
Kernel Version: Darwin 10.5.0


Install notes for PostgreSQL 9.0.1 install using Homebrew:
	sh-3.2# brew install postgresql