JSFiddle - React, Tailwind, and code Playground

by Emre Erkan

JavaScript

function createSetFromList(list) {
    var set = { };
    for (var i = 0; i < list.length; i++)
        set[list[i]] = true;
    return set;
}

function showProperties(v) {
    for (x in v) {
        if (v.hasOwnProperty(x)) {
            console.log(x + " belongs");
        } else {
            console.log(x + " does not belong");
        }
    } 
}

var myset = createSetFromList(["apple", "orange", "banana"]);
showProperties(myset);