help with the split

Question

Good afternoon, I am trying to modify a script that I am creating to create a simple web page, the beginning of the code I was able to create, however I have difficulties in separating the result, like: in the code I created Oce inserted a value and returns 52 different results, and with that I want to separate from in blocks, it would be a total of 13 blocks, the first contains the result from 1 to 4, the second from 5 to 8 and so on, but besides that I want to add the result, and I am not getting, I searched on the internet for options and I arrived at the split, however I cannot fit into the script I am creating, below follows the code.

var plan = prompt("Valor depositado.");
for (var i =1; i<=52; i++){
    console.log(`${i} = ${i*plan}`);
}

Answer 1

I don’t understand the point of this. Maybe you’re trying to solve a simpler problem but decided to ask how to do it the way you imagined, which would not be ideal.

To store the results 4 in 4, you can use the operator %, the module, which gives you the result of the division. If the result is 0, the number is divisible by 4, and you start to fill another block.

var plan = 10;
var blocos = [];
var resultados = [];

for (var i = 1; i <= 52; i++) {
    resultados.push(plan * i);
    if (i % 4 === 0) {
        blocos.push(resultados);
        resultados = [];
    }
}

var somaResultados = blocos.map(resultados => resultados.reduce((a, b) => a + b));
var somaBloco = somaResultados.reduce((a, b) => a + b);

console.log('blocos', blocos);
console.log('somaResultados', somaResultados);
console.log('somaBloco', somaBloco);

Now to add up the results, you can use the reduce method. Just provide a function callback and return the sum of the accumulated result (a) to the next item (b).