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Microsoft® JScript® replace Method |
Language Reference Version 3 |
Returns a copy of a string with text replaced using a regular expression.
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.
The result of the replace method is a copy of stringObj after all replacements have been made.In addition, the replace method can also replace subexpressions in the pattern. The following example swaps each pair of words in the string: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); }
function ReplaceDemo() { var r, re; var s = "The quick brown fox jumped over the lazy yellow dog."; re = /(\S+)(\s+)(\S+)/g; r = s.replace(re, "$3$2$1"); // Swap each pair of words. return(r); }
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