Javascript (JS) Tutorial - string last occurrence position, lastIndexOf function method

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String Function - lastIndexOf

Tutorials

Javascript

Topic

how to find the last occurrence position of a character or word in a string using javascript?

Explanation

Object: String

Method or Function: lastIndexOf(string)

Description: This method is similar to indexOf() function and takes a character or string as an argument. Searches the given string in the main string and returns the last occurrence position of the string. Returns -1 if the search string is not present in the main string.

Example Code:
<script language=javascript>
var ss = "a last index test ";
var result = ss.lastIndexOf("e");
document.write(result);
</script>

Result:

Explanation:
In the above example,

the main string is stored in a variable ss.

the method take a character "e" as argument.

the method searches in main string (ss) for the search string "e".

"e" is at two positions 10 and 14. last occurrence value 14 is returned as result.

A Note

Javascript (JS) is one of the most used languages in the world. Some times spelled as Java Script. Hope you enjoy this tutorial. Do send your feedback or suggestions on this javascript or java script tutorial. This is a copyright content.