the last index in a string js code example

Example 1: javascript get last character in string

var hello = "Hello World";
var lastCharOfHello=hello.slice(-1);//d

Example 2: javascript remove last character from string

var str = "Hello";
var newString = str.substring(0, str.length - 1); //newString = Hell

Example 3: 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