Core JavaScript 1.5 Reference:Global Objects:String:search
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Contents |
[edit] Summary
Executes the search for a match between a regular expression and this String object.
| Method of String | |
| Implemented in: | JavaScript 1.2 |
| ECMA Version: | ECMA-262, Edition 3 |
[edit] Syntax
search(regexp)
[edit] Parameters
-
regexp - A regular expression object. If a non-RegExp object
objis passed, it is implicitly converted to a RegExp by usingnew RegExp(obj).
[edit] Description
If successful, search returns the index of the regular expression inside the string. Otherwise, it returns -1.
When you want to know whether a pattern is found in a string use search (similar to the regular expression test method); for more information (but slower execution) use match (similar to the regular expression exec method).
[edit] Examples
[edit] Example: Using search
The following example prints a message which depends on the success of the test.
function testinput(re, str){
if (str.search(re) != -1)
midstring = " contains ";
else
midstring = " does not contain ";
document.write (str + midstring + re.source);
}