| 标题 | javascript string对象格式化的方法 |
| 内容 | javascript string对象格式化,下面是参考代码： /** * 字符串格式化，类似于java中的MessageFormat.format() 函数 * e.g. * 'This is a {0} not a {1}.'.format('string', 'num') => This is a string not a num. * 'This is a {0}, not a {1}. so parse to {2} first.'.format('string', 'num', 'num') => This is a string not a num. so parse to num first. * 'This is a {0}, not a {1}. so parse to {1} first.'.format('string', 'num') => This is a string not a num. so parse to num first. * 'This is a {0}, not a {1}. so parse to {2} first.'.format('string', 'num') => This is a string not a num. so parse to {2} first. */ String.prototype.format = function() { var args = arguments; return this.replace(/\{(\d+)\}/g, function(){ var val = args[arguments[1]]; alert(val + ' ' + arguments[0]); return (! val) ? arguments[0] : val; }); }; |
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