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| 1 | + |
| 2 | +/** |
| 3 | + * [管理 JavaScript 中变量的作用域] |
| 4 | + * @param {[type]} function( [description] |
| 5 | + * @return {[type]} [description] |
| 6 | + */ |
| 7 | +var JSManage = (function() { |
| 8 | + var that = {}; |
| 9 | + var errorList = []; |
| 10 | + |
| 11 | + /** |
| 12 | + * [function 挂载其它目录下的 js 文件] |
| 13 | + * @param {[type]} ns [目录结构] |
| 14 | + * @param {[type]} maker [插件的回掉函数] |
| 15 | + * @return {[type]} [description] |
| 16 | + */ |
| 17 | + that.loadPlugin = function(ns, maker) { |
| 18 | + var NSList = ns.split('.'); |
| 19 | + var step = that; |
| 20 | + var k = null; |
| 21 | + while (k = NSList.shift()) { |
| 22 | + if (NSList.length) { |
| 23 | + if (step[k] === undefined) { |
| 24 | + step[k] = {}; |
| 25 | + } |
| 26 | + //这里相当于将 step 又指向了 |
| 27 | + step = step[k]; |
| 28 | + } else { |
| 29 | + if (step[k] === undefined) { |
| 30 | + try { |
| 31 | + step[k] = maker(that); |
| 32 | + } catch (exp) { |
| 33 | + errorList.push(exp); |
| 34 | + } |
| 35 | + } |
| 36 | + } |
| 37 | + } |
| 38 | + }; |
| 39 | + |
| 40 | + /** |
| 41 | + * [function 编写插件过程中让默认参数和自定义参数合并] |
| 42 | + * @param {[type]} oSource [默认插件的参数] |
| 43 | + * @param {[type]} oParams [自定义配置参数] |
| 44 | + * @param {[type]} isown [是否复制默认参数原型链上的属性和值] |
| 45 | + * @return {[type]} [description] |
| 46 | + */ |
| 47 | + that.parseParam=function(oSource, oParams, isown){ |
| 48 | + var key, obj = {}; |
| 49 | + oParams = oParams || {}; |
| 50 | + for (key in oSource) { |
| 51 | + obj[key] = oSource[key]; |
| 52 | + if (oParams[key] != null) { |
| 53 | + //如果为 true 仅仅复制自身,不复制原型链 |
| 54 | + if (isown) { |
| 55 | + if (oSource.hasOwnProperty[key]) { |
| 56 | + obj[key] = oParams[key]; |
| 57 | + } |
| 58 | + } |
| 59 | + else { |
| 60 | + obj[key] = oParams[key]; |
| 61 | + } |
| 62 | + } |
| 63 | + } |
| 64 | + return obj; |
| 65 | + }; |
| 66 | + |
| 67 | + return that; |
| 68 | +})(); |
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