javascript-interview-questions/coding-exercise/superArrayOfObjects/superArrayOfObjects.js at master · InspectCoder/javascript-interview-questions · GitHub

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// Example data
const aob =
[
    { framework: 'React.JS', website: 'Paypal' },
    { framework: 'React.JS', website: 'Tesla' },
    { framework: 'Angular', website: 'Google' },
    { framework: 'Vue.JS', website: 'Vue' },
    { framework: 'JavaScript', website: 'inblack67' },
]
const superAob = (data, victim) => {

    const obj = {};

    data.forEach((data) => {
        if(data.hasOwnProperty(victim)){
            if(obj[data[victim]]){
                obj[data[victim]]++;
            }
            else{
                obj[data[victim]] = 1;
            }
        }
    })

    let superArrayOfObjects = [];

    for (const key in obj) {
        superArrayOfObjects = [...superArrayOfObjects, { victim: key, count: obj[key]}];
    }

    return superArrayOfObjects;
}

console.log(superAob(aob, 'framework'));

// output:-
// [
//     { victim: 'React.JS', count: 2 },
//     { victim: 'Angular', count: 1 },
//     { victim: 'Vue.JS', count: 1 },
//     { victim: 'JavaScript', count: 1 }
// ]