find the last occurrence of a character in a string javascript code example

Example 1: lastindexof() javascript

'canal'.lastIndexOf('a');     // retorna 3
'canal'.lastIndexOf('a', 2);  // retorna 1
'canal'.lastIndexOf('a', 0);  // retorna -1
'canal'.lastIndexOf('x');     // retorna -1
'canal'.lastIndexOf('c', -5); // retorna 0
'canal'.lastIndexOf('c', 0);  // retorna 0
'canal'.lastIndexOf('');      // retorna 5
'canal'.lastIndexOf('', 2);   // retorna 2

Example 2: lastindexof js

string.lastIndexOf("subString")

Example 3: find the last occurrence of a character in a string javascript

str.lastIndexOf(searchValue[, fromIndex])