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<!doctype html>
<html class="no-js" lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>
JS 筆記 - My Frontend Note
</title>
<link href="atom.xml" rel="alternate" title="My Frontend Note" type="application/atom+xml">
<link rel="stylesheet" href="asset/css/foundation.min.css" />
<link rel="stylesheet" href="asset/css/docs.css" />
<script src="asset/js/vendor/modernizr.js"></script>
<script src="asset/js/vendor/jquery.js"></script>
<script src="asset/highlightjs/highlight.pack.js"></script>
<link href="asset/highlightjs/styles/github.css" media="screen, projection" rel="stylesheet" type="text/css">
<script>hljs.initHighlightingOnLoad();</script>
<script type="text/javascript">
function before_search(){
var searchVal = 'site:yucj.github.io/logMine ' + document.getElementById('search_input').value;
document.getElementById('search_q').value = searchVal;
return true;
}
</script>
</head>
<body class="antialiased hide-extras">
<div class="marketing off-canvas-wrap" data-offcanvas>
<div class="inner-wrap">
<nav class="top-bar docs-bar hide-for-small" data-topbar>
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<li id=""><a target="self" href="index.html">Home</a></li>
<li id=""><a target="_self" href="archives.html">Archives</a></li>
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<li>
<form target="_blank" onsubmit="return before_search();" action="http://google.com/search" method="get">
<input type="hidden" id="search_q" name="q" value="" />
<input tabindex="1" type="search" id="search_input" placeholder="Search"/>
</form>
</li>
</ul>
</div></div>
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</section>
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<a href="javascript:void(0)" class="left-off-canvas-toggle menu-icon">
<span> My Frontend Note</span>
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<li><a href="about.html">ABOUT</a></li>
<li><label>Categories</label></li>
<li><a href="git_note.html">Git 筆記</a></li>
<li><a href="javascript_note.html">JS 筆記</a></li>
<li><a href="ES2015.html">ES2015</a></li>
<li><a href="%E5%AF%A6%E7%BF%92%E7%AD%86%E8%A8%98.html">實習筆記</a></li>
<li><a href="Babel.html">Babel</a></li>
<li><a href="Best%20Practices.html">Best Practices</a></li>
<li><a href="Webpack.html">Webpack</a></li>
</ul>
</aside>
<a class="exit-off-canvas" href="#"></a>
<section id="main-content" role="main" class="scroll-container">
<script type="text/javascript">
$(function(){
$('#menu_item_index').addClass('is_active');
});
</script>
<div class="row">
<div class="large-8 medium-8 columns">
<div class="markdown-body home-categories">
<div class="article">
<a class="clearlink" href="14987956627714.html">
<h1>[NodeJS] Path, URL 路徑相關問題整理</h1>
<div class="a-content">
<div class="a-content-text">
<ul>
<li>
<a href="#toc_0">Node Path:</a>
<ul>
<li>
<a href="#toc_1">比較 <code>path.join</code> 和 <code>path.resolve</code></a>
<ul>
<li>
<a href="#toc_2">Testing Code:</a>
</li>
<li>
<a href="#toc_3">Testing Cases:</a>
</li>
<li>
<a href="#toc_4">簡單說明：</a>
</li>
</ul>
</li>
<li>
<a href="#toc_5">哪些是 absolute path？</a>
</li>
</ul>
</li>
<li>
<a href="#toc_6">Node URL:</a>
</li>
</ul>
</div>
</div>
</a>
<div class="read-more clearfix">
<div class="more-left left">
<a href="14987956627714.html">Read more</a>
<span class="date">2017/6/30</span>
<span>posted in </span>
<span class="posted-in"><a href='javascript_note.html'>JS 筆記</a></span>
</div>
<div class="more-right right">
<span class="comments">
</span>
</div>
</div>
</div><!-- article -->
<div class="article">
<a class="clearlink" href="14932160992551.html">
<h1>Event.currentTarget and Event.target</h1>
<div class="a-content">
<div class="a-content-text">
<pre><code class="language-javascript">_handleBtnClicked(event) {
event.preventDefault()
console.log('currentTarget', event.currentTarget)
console.log('target', event.target)
const progressType = `type${event.currentTarget.dataset.typeid}`
this.props.switchDisplayed(progressType)
}
<Button
key={value.ID}
name={value.ID}
data-typeid={value.ID}
checked={value.displayed}
onClick={this._handleBtnClicked}
>
{value.title}
<div>{ICONS[`type${value.ID}`]}</div>
</Button>
</code></pre>
<p>svg 底下超多層<br/>
用event.target是抓到實際click到的DOM<br/>
用event.currentTarget是抓到設監聽器的DOM</p>
</div>
</div>
</a>
<div class="read-more clearfix">
<div class="more-left left">
<span class="date">2017/4/26</span>
<span>posted in </span>
<span class="posted-in"><a href='javascript_note.html'>JS 筆記</a></span>
</div>
<div class="more-right right">
<span class="comments">
</span>
</div>
</div>
</div><!-- article -->
<div class="article">
<a class="clearlink" href="14913887647492.html">
<h1>Tagged Template Literals (An ES6 Feature)</h1>
<div class="a-content">
<div class="a-content-text">
<p><a href="http://mxstbr.blog/2016/11/styled-components-magic-explained/">The magic behind styled-components</a><br/>
<a href="https://github.com/styled-components/styled-components/blob/master/docs/tagged-template-literals.md">ES6 Tagged Template Literals</a></p>
</div>
</div>
</a>
<div class="read-more clearfix">
<div class="more-left left">
<span class="date">2017/4/5</span>
<span>posted in </span>
<span class="posted-in"><a href='javascript_note.html'>JS 筆記</a></span>
</div>
<div class="more-right right">
<span class="comments">
</span>
</div>
</div>
</div><!-- article -->
<div class="article">
<a class="clearlink" href="javascript-ES6-class.html">
<h1>ES5 Constructor Functions v.s. ES6 Class</h1>
<div class="a-content">
<div class="a-content-text">
<blockquote>
<p>本文為<a href="http://es6.ruanyifeng.com/#docs/class">阮一峰・ECMAScript 6 入門：Class</a>的筆記</p>
</blockquote>
<ul>
<li>
<a href="#toc_0">general</a>
</li>
<li>
<a href="#toc_1">constructor</a>
</li>
<li>
<a href="#toc_2">prototype</a>
<ul>
<li>
<a href="#toc_3">Methods is saved in instance's <code>__proto__</code> not instance itself</a>
</li>
<li>
<a href="#toc_4">enumerable</a>
</li>
<li>
<a href="#toc_5">Mutate the <code>__proto__</code> via instance</a>
</li>
</ul>
</li>
<li>
<a href="#toc_6">the constructor function</a>
<ul>
<li>
<a href="#toc_7">Class as expression</a>
</li>
</ul>
</li>
<li>
<a href="#toc_8">Private Methods</a>
<ul>
<li>
<a href="#toc_9">Naming with prefix <code>_</code> for distinguish</a>
</li>
<li>
<a href="#toc_10">Declare methods outside the block</a>
</li>
<li>
<a href="#toc_11">Use Symbol as name of method</a>
</li>
<li>
<a href="#toc_12">Maybe in ES7</a>
</li>
</ul>
</li>
<li>
<a href="#toc_13"><code>this</code> in Methods</a>
</li>
<li>
<a href="#toc_14">繼承</a>
<ul>
<li>
<a href="#toc_15">super</a>
</li>
</ul>
</li>
<li>
<a href="#toc_16">static 靜態方法</a>
</li>
<li>
<a href="#toc_17">不能獨立使用、必須繼承後才能使用的 class</a>
</li>
<li>
<a href="#toc_18">待研究</a>
</li>
</ul>
</div>
</div>
</a>
<div class="read-more clearfix">
<div class="more-left left">
<a href="javascript-ES6-class.html">Read more</a>
<span class="date">2017/3/16</span>
<span>posted in </span>
<span class="posted-in"><a href='javascript_note.html'>JS 筆記</a></span>
</div>
<div class="more-right right">
<span class="comments">
</span>
</div>
</div>
</div><!-- article -->
<div class="article">
<a class="clearlink" href="14758453690233.html">
<h1>定義一個函式：宣告、運算式、有時還有建構器</h1>
<div class="a-content">
<div class="a-content-text">
<p>在 Javascript 中，定義一個函式（產生一個函式物件）有三種方法：</p>
<p><strong>(1) 函式宣告（function declarations）<br/>
(2) 函式運算式（function expression）<br/>
(3) 函式建構式（the function constructor）</strong></p>
<p>以下是一些這三種方法的比較和特殊性（以較常用的函式宣告和函式建構式為主）：</p>
<p><strong>本文目錄：</strong></p>
<ul>
<li>
<a href="#toc_0">一、比較各種情況的 function.name</a>
</li>
<li>
<a href="#toc_1">二、原來是函式運算式啊，我還以為是函式宣告呢</a>
<ul>
<li>
<a href="#toc_2">待解問題:</a>
</li>
</ul>
</li>
<li>
<a href="#toc_3">偵測函式是否存在</a>
</li>
</ul>
</div>
</div>
</a>
<div class="read-more clearfix">
<div class="more-left left">
<a href="14758453690233.html">Read more</a>
<span class="date">2016/10/7</span>
<span>posted in </span>
<span class="posted-in"><a href='javascript_note.html'>JS 筆記</a></span>
</div>
<div class="more-right right">
<span class="comments">
</span>
</div>
</div>
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<h1>My Frontend Note</h1>
<div class="site-des">我的前端筆記</div>
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<a target="_blank" class="rss" href="atom.xml" title="RSS">RSS</a>
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<h2>Categories</h2>
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<a href="14988019613600.html">Webpack 2 & 3: Input(Entry) and Output</a>
</li>
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<a href="14987956627714.html">[NodeJS] Path, URL 路徑相關問題整理</a>
</li>
<li class="post">
<a href="14987306644790.html">Webpack plugins and loaders I used</a>
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<a href="14987255686752.html">Babel plugins and loaders I used</a>
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<a href="14971940142851.html">Webpack 2: deploy</a>
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