Merge JSON Object with same “key” and add their “value” using JavaScript

Question

My JSON looks like this

{\"rows\":[
    {\"key\":[\"zeit.de\"],\"value\":98},
    {\"key\":[\"google.com\"],\"value\":49},
    {\"key\":[\"spiegel.de\"],\"value\         


        

Answer 1

You can try something like this:

var newData = {rows: []},
    index;

for (var i = 0; i < data.rows.length;i++){
    index = newDataContains(data.rows[i].key);
    if (index == -1){
        newData.rows.push({key: data.rows[i].key, value: data.rows[i].value});
    } else {
        newData.rows[index].value += data.rows[i].value;
    }
}

function newDataContains(key){
    for (var i=0; i < newData.rows.length; i++){
        if (JSON.stringify(newData.rows[i].key) == JSON.stringify(key)) {
            return i;
            break;
        }
    }
    return -1;
}

jsfiddle: https://jsfiddle.net/9p81g5j6/