indexOf

Description

Finds the first occurrence a substring within a String object.

Syntax

1. StringObj.indexOf(substring, [startIndex])
2. "String Literal".indexOf(substring, [startIndex])

Parameters

substring

An integer or string specifying the substring to be searched for within stringObj.

startIndex

Optional. An integer specifying the starting point in stringObj to search for substring.

Returns

The indexOf method returns an integer value indicating the beginning of the substring within the String object. If the substring is not found, a -1 is returned.

If startindex is negative, startindex is treated as zero. If it is larger than the greatest character position index, it is treated as the largest possible index.

Searching is performed from left to right.

Example

s = "This is an example for String.indexOf";
i = s.indexOf("example");
trace(i);//output: 11