Lets say I have an array
['Student', 'Progress', 'Student', 'Area']
I would like to have an object that looks like this...
{
{
value: "Student",
count: 2
},
{
value: "Progress",
count: 1
}
}
The code I am using currently is this... which clearly is wrong. Any help would be appreciated.
const counts = [];
for (let i = 0; i < array.length; i++) {
var object = {
value: counts[array[i]],
count: (1 + (counts[array[i]] || 0))
}
counts.push(object);
};
return counts;
You could take an object for counting and map the entries of the object as new object.
const
data = ['Student', 'Progress', 'Student', 'Area'],
result = Object
.entries(data.reduce((r, s) => {
r[s] = (r[s] || 0) + 1;
return r;
}, {}))
.map(([value, count]) => ({ value, count }));
console.log(result);.as-console-wrapper { max-height: 100% !important; top: 0; }