replace Method Description
Replaces the text found by a regular expression with other text.
Syntax
stringObj.replace(rgExp, replaceText)The replace method syntax has these parts: Part Description
stringObj Required. The String object or literal on which to perform the replace. This object is not modified by the replace method.
rgExp Required. A Regular Expression object describing what to search for.
replaceText Required. A String object or literal containing the text to replace for every successful match of rgExp in stringObj.
Res
The result of the replace method is a copy of stringObj after all replacements have been made.
The method updates the contents of the RegExp object.The following example illustrates the use of the replace method:
function ReplaceDemo()
{
var r, re;
var s = "The quick brown fox jumped over the lazy yellow dog.";
re = /fox/i;
r = s.replace(re, "pig");
return(r);
}
Replaces the text found by a regular expression with other text.
Syntax
stringObj.replace(rgExp, replaceText)The replace method syntax has these parts: Part Description
stringObj Required. The String object or literal on which to perform the replace. This object is not modified by the replace method.
rgExp Required. A Regular Expression object describing what to search for.
replaceText Required. A String object or literal containing the text to replace for every successful match of rgExp in stringObj.
Res
The result of the replace method is a copy of stringObj after all replacements have been made.
The method updates the contents of the RegExp object.The following example illustrates the use of the replace method:
function ReplaceDemo()
{
var r, re;
var s = "The quick brown fox jumped over the lazy yellow dog.";
re = /fox/i;
r = s.replace(re, "pig");
return(r);
}
var str
str.replace("d","*")将str中的d替换成*
var tmpStr="ababcabcdabcde";
tmpStr=tmpStr.replace(/a/g,"_"); //注释:/g表示全局
alert(tmpStr);
</SCRIPT>