JSFiddle - React, Tailwind, and code Playground

by arcm111

HTML

<div id="eng"></div>

JavaScript

var data = {
    "1": {
        "id": "1",
            "league": "england",
            "team1": "Arsenal",
            "team2": "Chelsea"
    },
        "2": {
        "id": "2",
            "league": "spain",
            "team1": "Deportivo",
            "team2": "Real Madrid"
    }
};


var shownIds = [];

$.each(data, function (index, item) {
    if (item.hasOwnProperty('id')) {
        if (item.league == "england") {
            $("#eng").append("id: " + item.team1 + " [ " + item.team1 + " - " + item.team1 + " ]" + item.team2 + "<br />");
        }
        shownIds.push(item.id);
    }
});

console.log(shownIds);