strpos js code example

Example 1: js strpos

var str = "Hello world, welcome to the universe.";

var n = str.indexOf("welcome");

Example 2: indexof javascript

Array.indexOf(searchElement, fromIndex)

Example 3: .index of javascript

let monTableau = ['un', 'deux','trois', 'quatre'] ;
console.log(monTableau.indexOf('trois')) ;

Example 4: indexof javascript

arr.indexOf(searchElement[, fromIndex])