JSFiddle - React, Tailwind, and code Playground
JavaScript
var arr = "18 pagina’s per minuut";
var item = "pagina’s per minuut";
var translate = "pages par minute";
if(arr.indexOf(item) !== -1) {
//arr = arr.replace(/[^0-9]+/, translate);
arr = arr.replace(/[^0-9 ]+/, translate);
alert(arr);
}