Here is Some String functions in Java Script

thisString.toLowerCase();

–>IT converts the string stored in the variable thisString to lower case.

thisString.indexOf(compareString)

— > Search for the occurence of the string stored in the variable compare string in the variable thisString.

For ex : if thisString =”abcd”

compareString=”bc”

The output will be 1 ( the index location of b)

This method returns -1 if the value to search for never occurs.

thisString.indexOf(compareString)

—>

This will find out the last occurance of the string compareString in thisString

For Ex: if thisString=”abcabcab”

compareString=”ab”

The output will be 6 (the index of last a)