用于从两个对象属性创建键值对的函数

Question

I'm parsing a 2 column CSV file with d3.csv. Is there an existing JS, jQuery, or D3 function to turn the result into key-value pairs?

Example CSV input:

Option      Value
first_name  Don
last_name   Smith

Example d3.csv output from Chrome console:

{ option: "first_name", value: "Don" },
{ option: "last_name", value: "Smith" }

Below is the output I would like (I want to use the option as a key, and the value as a ... value):

[{ first_name: "don" }, { last_name: "Smith" }]

If there is no existing function I was going to code something that loops through the object, and uses "option" as the new key, and "value" as it's value. I assumed something like this has already been written.

Answer 1

Is this what you mean?

function makeArrayWithOptionAsKey(oldDataArray) {
    var newDataArray = [];
    for (var i=0; i<oldDataArray.length; i++) {
        var option = oldDataArray[i]['option'];
        var value = oldDataArray[i]['value'];
        newDataArray.push({ option: value });
    }
    return newDataArray;
}

If this is what you're looking for you could also use JQuery's map:

var arrayWithObjectAsKey = $.map(myObjList, function (el, i) {
    var newElement = {};
    newElement[el['option']] = el['value'];
    return newElement;
});