Jack Zhai zacker330

## ScopeOfJavascript
var scope = "s1";

var f = function(){
    console.log(scope);  // will print undefined
    var scope = "f1";
}

## gist:5158984
<!DOCTYPE html>
<html>
  <head>
    <title>Hello, data!</title>
    <script type="text/javascript" src="lib/d3.js"></script>
  </head>
  <body>

    <div id="viz"></div>

## gist:5148807
<div >
<img src="images/logo.jpg" alt="" style="display:inline-block; vertical-align:middle;" />
<span style="display:inline-block; vertical-align:middle;">xxxxxxx</span>
</div>

## gist:5131618
$.each([1,2,3,4,5,6], function(i, v){
    alert(v);
    if(v > 4){
        return;
    }
});

## gist:5098228
var proApp = {
    inner : function(){
        alert(proApp.defaultSettings.arg1);
    },
    defaultSettings : {
        arg1 : 1,
        str  : "string"
    }
}

## gist:5097229
var settings = $.extend({
  	xx : 'xx',
    int : 1
	}, options || {});
	var scope = "s1";

	var f = function(){
	console.log(scope); // will print undefined
	var scope = "f1";
	}
	<!DOCTYPE html>
	<html>
	<head>
	<title>Hello, data!</title>
	<script type="text/javascript" src="lib/d3.js"></script>
	</head>
	<body>

	<div id="viz"></div>
	<div >
	<img src="images/logo.jpg" alt="" style="display:inline-block; vertical-align:middle;" />
	<span style="display:inline-block; vertical-align:middle;">xxxxxxx</span>
	</div>
	$.each([1,2,3,4,5,6], function(i, v){
	alert(v);
	if(v > 4){
	return;
	}
	});
	var proApp = {
	inner : function(){
	alert(proApp.defaultSettings.arg1);
	},
	defaultSettings : {
	arg1 : 1,
	str : "string"
	}
	}
	var settings = $.extend({
	xx : 'xx',
	int : 1
	}, options \|\| {});