JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" id="entrada"></input>
<button id="botao">Testar</button>

JavaScript

$("#botao").click(function () {
    var m;
    if (m = $("#entrada").val().match(/\d-\d/g)) {
        var i;
        for (i = 0; i < m.length(); i++) {
            alert(m[i]);
        }
    } else {
        alert("no match");
    }
});