JavaScript » RegExp » rightContext
- Syntax:
- RegExp.rightContext
The RegExp rightContext is deprecated in Javascript 1.5.
This property is the substring after the character most recently matched; i.e. everything that follows it, and as a static property, is always used as RegExp.rightContext.
Examples
Code:
rexp = /[aeiou]+/g
rexp("the fisherman")
document.write(RegExp.rightContext)
rexp("the fisherman")
document.write("<BR>" + RegExp.rightContext)
Output:
fisherman
sherman
Explanation:
The regular expression consists of one or more vowels. The code searches the string "the fisherman" and matches the 'e' in 'the' printing the substring to the right of it: namely 'fisherman'. Then it searches the same string again starting from where it ended in the previous search (see the lastIndex property), this time matching the 'i' of 'fisherman' and printing the following substring 'sherman'.
NOTE:
The regular expression in this example uses the flag 'g' to indicate a global search. If it wasn't there, the second search in the above example would start at the beginning of the string producing exactly the same match as the first search: namely 'fisherman'.
