JSFiddle - React, Tailwind, and code Playground

by igalst

JavaScript

function getListsAmount(options) {
    var result = 0;
    
    (options || []).forEach(function(option) {
        if (option.type === "DROP_DOWN") {
            result++;
        }
    });
    
    return result;
}

var myOptions = [{"type":"DROP_DOWN","size":1},{"type":"DROP_DOWN","size":1},{"type":"COLOR","size":1}];

console.log(getListsAmount(myOptions));