Hello I have an array that looks like this
result.entities= [
{zs_numero: "1", "zs_coefficient": "2", "zs_score": "50"},
{zs_numero: "1", "zs_coefficient": "2", "zs_score": "55"},
{zs_numero: "2", "zs_coefficient": "4", "zs_score": "2"},
{zs_numero: "2", "zs_coefficient": "4", "zs_score": "10"},
{zs_numero: "3", "zs_coefficient": "3", "zs_score": "33"},
{zs_numero: "3", "zs_coefficient": "3", "zs_score": "35"},
]
I wanted to get the maximum score for each "zs_numero" and then multiply all the maximum scores with the coefficient to get a final result So i want to get the values like this:
newarray= [
{zs_numero: "1", "zs_coefficient": "2", "zs_score": "55"},
{zs_numero: "2", "zs_coefficient": "4", "zs_score": "10"},
{zs_numero: "3", "zs_coefficient": "3", "zs_score": "35"},
]
and then make a a variable that calculate all the (zs_coefficient*zs_score) and add them together
I tried this but it didnt work
var newarray = []
result.entities.forEach(function (a) {
if (!this[a.zs_numero]) {
this[a.zs_numero] = { zs_numero: a.zs_numero, zs_coefficient: 0, zs_score: 0 };
newarray.push(this[a.zs_numero]);
}
this[a.zs_numero].zs_coefficient = a.zs_coefficient;
this[a.zs_numero].zs_score = Math.max(this[a.zs_numero].zs_score, a.zs_score);
}, Object.create(null));
console.log(newarray)
for(var i = 0; i < newarray.length; i++){
max=max+newarray.zs_coefficient*newarray.zs_score
}
You can use Array.reduce() to get the desired result, creating a map keyed on zs_numero. If there is no object present at the zs_numero property or the zs_score is greater than the existing value, we replace it.
We can use Array.reduce() again to calculate the total (sum of zs_coefficient x zs_score);
result = {
entities: [
{zs_numero: "1", "zs_coefficient": "2", "zs_score": "50"},
{zs_numero: "1", "zs_coefficient": "2", "zs_score": "55"},
{zs_numero: "2", "zs_coefficient": "4", "zs_score": "2"},
{zs_numero: "2", "zs_coefficient": "4", "zs_score": "10"},
{zs_numero: "3", "zs_coefficient": "3", "zs_score": "33"},
{zs_numero: "3", "zs_coefficient": "3", "zs_score": "35"},
]
}
const output = Object.values(result.entities.reduce ((acc, cur) => {
if (!acc[cur.zs_numero] || (+cur.zs_score > +acc[cur.zs_numero].zs_score)) {
acc[cur.zs_numero] = cur;
}
return acc;
}, {}));
console.log('Output:', output)
const total = output.reduce((acc, cur) => {
return acc + cur.zs_score * cur.zs_coefficient
}, 0);
console.log('Total score:', total);.as-console-wrapper { max-height: 100% !important; top: 0; }Here is a simple loop to solve your problem.
const entities= [
{zs_numero: "1", "zs_coefficient": "2", "zs_score": "50"},
{zs_numero: "1", "zs_coefficient": "2", "zs_score": "55"},
{zs_numero: "2", "zs_coefficient": "4", "zs_score": "2"},
{zs_numero: "2", "zs_coefficient": "4", "zs_score": "10"},
{zs_numero: "3", "zs_coefficient": "3", "zs_score": "33"},
{zs_numero: "3", "zs_coefficient": "3", "zs_score": "35"},
]
let finalResult = []
entities.map(d => {
let index = finalResult.findIndex(p => p.zs_numero == d.zs_numero)
if(index == -1) {
finalResult.push(d)
} else {
if(parseInt(d.zs_score) > parseInt(finalResult[index].zs_score)) {
finalResult[index] = {...d};
}
}
})
console.log(finalResult)
let Total = 0;
finalResult.map(d=> {Total += (d.zs_score * d.zs_coefficient)})
console.log(Total)