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JavaScript中的replace()方法使用詳解，javascriptreplace
該方法找到一個Regex的字串之間的匹配，並取代了匹配的子帶的新的子串。
替換字串可以包含以下特殊替換模式：
文法
string.replace(regexp/substr, newSubStr/function[, flags]);
下面是參數的詳細資料：
傳回值:
例子：
下面的樣本示範了如何使用全球和忽略大小寫標誌，允許替換，以使用字串'oranges'取代'apples'
<html><head><title>JavaScript String replace() Method</title></head><body><script type="text/javascript">var re = /apples/gi;var str = "Apples are round, and apples are juicy.";var newstr = str.replace(re, "oranges");document.write(newstr ); </script></body></html>
例子：
下面的例子示範了如何在一個字串轉換的詞：
<html><head><title>JavaScript String replace() Method</title></head><body><script type="text/javascript">var re = /(\w+)\s(\w+)/;var str = "zara ali";var newstr = str.replace(re, "$2, $1");document.write(newstr);</script></body></html>
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