js lastindexof string code example
Example 1: js last index of
const str = "Users/Edit/12345";
let idx = str.lastIndexOf("/"); // returns 10
idx = str.lastIndexOf("x"); // returns -1
idx = str.lastIndexOf("Edit") // returns 6
idx = str.lastIndexOf("edit") // returns -1 -- case sensitive
// add "from" parameter
// the search happens backwards, starting at the provided from parameter
idx = str.lastIndexOf("s"); // returns 4
idx = str.lastIndexOf("s", 3); // returns 1
Example 2: lastindexof javascript
string.lastIndexOf(searchValue[, fromIndex])
Example 3: lastindexof js
string.lastIndexOf("subString")