JScript Method-LastIndexOf method

Js|jscript returns the last occurrence of the substring of a string object.

Strobj.lastindexof (substring[, startindex])

Parameters
Strobj

Required option. A String object or text.

Substring

Required option. The substring to find within the string object.

startindex

Options available. The integer value indicates the starting index position of the lookup within the String object. If omitted, the lookup starts at the end of the string.

Description
The LastIndexOf method returns an integer value that indicates the starting position of the substring of the string object. If no substring is found, returns-1.

If the startindex is a negative number, the startindex is treated as zero. If it is larger than the maximum character position index, it is considered to be the largest possible index.

Performs a lookup from right to left. Otherwise, the method is the same as indexOf.

The following example illustrates the use of the LastIndexOf method:

function Lastindexdemo (STR2)
{
var str1 = "Babebibobubabebibobu"
var s = str1.lastindexof (STR2);
return (s);
}
Requirements
Version 1