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Category: Java Script
view more software Tips and Tricks
Updated: 11/27/2012 11:11 AM
Author: Shiju Mathews Status: Resolved. |
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This one is a pretty handy function in JavaScript string operations.The lastIndexOf() method returns the position of the last occurrence of a specified value in a string. Example Search a string for the last occurence of "planet", starting the search at position 20: The result of n will be:6 Note: The string is searched from the end to the beginning, but returns the index starting at the beginning, at postion 0. This method returns -1 if the value to search for never occurs. Note: The lastIndexOf() method is case sensitive! Browser Support The lastIndexOf() method is supported in all major browsers. Syntax: string.lastIndexOf(searchvalue,start) Parameter Values searchvalue: Required. The string to search for. start:(Optional). The position where to start the search. If omitted, the default value is the length of the string. Return Value: Type: Number Description: The position where the specified searchvalue occurs for the last time, or -1 if it never occurs Technical Details: JavaScript Version:1.0 |