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1 //credit: Speed Up Your Site (New Riders, 2003) 2 var iterations = Math.floor(value.length / 8); 3 var leftover = value.length % 8; 4 var i = 0; 5 6 if (leftover > 0) { 7 do { 8 process(values[i++]); 9 } while (--leftover > 0);10 }11 do {12 process(value[i++]);13 process(... 阅读全文
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原生函数1 function handleKeyPress(event) {2 if (event.KeyCode == 13) {3 var target = EventUtil.getTarget(event);4 var value = 5 * parseInt(target.value);5 if (value > 10) {6 document.getElementById("error-msg").style.display = "block";7 }8 }9 }解耦后的函数 1... 阅读全文
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1 var CookieUtil = { 2 get: function(name) { 3 var cookieName = encodeURIComponent(name) + "=", 4 cookieStart = document.cookie.indexOf(cookieName), 5 cookieValue = null; 6 7 if (cookieStart > -1) { 8 var cookieEnd = document.cookie.indexOf("... 阅读全文
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1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 2 <html xmlns="http://www.w3.org/1999/xhtml"> 3 <head> 4 <meta http-equiv="Content-Type" content="text/html;ch 阅读全文
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1 //自定义事件 2 function EventTarget() { 3 this.handlers = {}; 4 } 5 EventTarget.prototype = { 6 constructor: EventTarget, 7 //注册 8 addHandler: function(type, handler) { 9 if (typeof this.handlers[type] == "undefined") {10 this.handlers[type] = [];11 ... 阅读全文
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1 function chunk(array, process, context) { 2 setTimeout(function() { 3 var item = array.shift(); 4 process.call(context, item); 5 6 if (array.length > 0) { 7 setTimeout(arguments.callee, 100); 8 } 9 }, 100);10 }11 12 var data = [12, 123, 1234, 4... 阅读全文
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1 function curry(fn, context) { 2 var args = Array.prototype.slice.call(arguments, 2); 3 return function() { 4 var innerArgs = Array.prototype.slice.call(arguments); 5 var finalArgs = args.concat(innerArgs); 6 return fn.apply(context, finalArgs); 7 }; 8 } 9 funct... 阅读全文
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1 function curry(fn) { 2 var args = Array.prototype.slice.call(arguments, 1); 3 return function() { 4 var innerArgs = Array.prototype.slice.call(arguments); 5 var finalArgs = args.concat(innerArgs); 6 return fn.apply(null, finalArgs); 7 }; 8 } 9 10 //使用方法11 funct... 阅读全文
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1 function bind(fn, context) { 2 return function() { 3 return fn.apply(context, arguments); 4 }; 5 } 6 7 //使用方法 8 var handler = { 9 message: "Event handler",10 handleClick: function() {11 console.log(this.message + ":" + event.type);12 }13 };14 var btn = documen... 阅读全文
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1 function Polygon(sides) { 2 if (this instanceof Polygon) { 3 this.sides = sides; 4 this.getArea = function() { 5 return 0; 6 }; 7 } else { 8 return new Polygon(sides); 9 }10 }11 12 function Rectangle(width, height) {13 Polygon.call(this,... 阅读全文