map vs flattened

var wowsers = input.map(({label: variantName, interp: weight}) => {
	return {variantName, weight, value:0};
});

var wowsers = [
  {variantName: input[0].label, weight:input[0].interp, value:0},
  {variantName: input[1].label, weight:input[1].interp, value:0},
  {variantName: input[2].label, weight:input[2].interp, value:0},
  {variantName: input[3].label, weight:input[3].interp, value:0}
];

var wowsers = input.map((data) => {
	return {variantName: data.label, weight: data.interp, value:0};
});

var wowsers = [];
for (let i=0; i<4; i++) {
  wowsers.push({variantName: input[i].label, weight:input[i].interp, value:0});
}

var wowsers = new Array(4);
for (let i=0; i<4; i++) {
  wowsers[i] = {variantName: input[i].label, weight:input[i].interp, value:0};
}

const input0 = input[0];
const input1 = input[1];
const input2 = input[2];
const input3 = input[3];
var wowsers = [
  {variantName: input0.label, weight:input0.interp, value:0},
  {variantName: input1.label, weight:input1.interp, value:0},
  {variantName: input2.label, weight:input2.interp, value:0},
  {variantName: input3.label, weight:input3.interp, value:0}
];