nomospace一种灵活的回调参数设计 [翻译]2012-09-11 posted in [javascript]原文地址：http://caolanmcmahon.com/posts/flexible_callback_arguments/原文作者：Caolan McMahon_.map([1,2,3], function (value, index) { ... });_.map([1,2,3], function (value, index, arr) { ... });// fn.length == 3var fn = function (one) { ... };// fn.length == 1// the full list of available argumentsvar args = ['value', 'index', 'arr'];// remove the unused argumentsargs = args.slice(0, iterator.length - 1);// add the callback to the endargs.push('callback');// run the iterator with the new argumentsreturn iterator.apply(this, args);};console.log('Example one:');test(function (value, index, arr, callback) {console.log(value);console.log(index);console.log(arr);console.log(callback);});console.log('Example two:');test(function (value, callback) {console.log(value);console.log(callback);});valueindexarrcallbackExample two:valuecallbackconsole.log(arguments[0]);console.log(arguments[1]);console.log(arguments[2]);console.log(arguments[3]);});indexcallbackundefined// the full list of available argumentsvar args = ['value', 'index', 'arr'];if (iterator.length) {// remove the unused argumentsargs = args.slice(0, iterator.length - 1);}// add the callback to the endargs.push('callback');// run the iterator with the new argumentsreturn iterator.apply(this, args);};indexarrcallbackr.js 配置文件 example.build.js 不完整注释2012-08-10 posted in [node]Watermark.js for NodeJS2011-06-22 posted in [node]关注 CSS Lint2011-06-16 posted in [css]也谈谈Javascript中的几个"怪异"特性2011-06-11 posted in [javascript]node.js 下的短网址还原2011-06-10 posted in [node]html5 文件拖放的一个简单实例2011-06-09 posted in [html5]
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