function addPlusMinusControl()

in src/playground.ts [662:703]

• 39 lines of code
• 4 McCabe index (conditional complexity)

function addPlusMinusControl(x: number, layerIdx: number) {
  let div = d3.select("#network").append("div")
    .classed("plus-minus-neurons", true)
    .style("left", `${x - 10}px`);

  let i = layerIdx - 1;
  let firstRow = div.append("div").attr("class", `ui-numNodes${layerIdx}`);
  firstRow.append("button")
      .attr("class", "mdl-button mdl-js-button mdl-button--icon")
      .on("click", () => {
        let numNeurons = state.networkShape[i];
        if (numNeurons >= 8) {
          return;
        }
        state.networkShape[i]++;
        parametersChanged = true;
        reset();
      })
    .append("i")
      .attr("class", "material-icons")
      .text("add");

  firstRow.append("button")
      .attr("class", "mdl-button mdl-js-button mdl-button--icon")
      .on("click", () => {
        let numNeurons = state.networkShape[i];
        if (numNeurons <= 1) {
          return;
        }
        state.networkShape[i]--;
        parametersChanged = true;
        reset();
      })
    .append("i")
      .attr("class", "material-icons")
      .text("remove");

  let suffix = state.networkShape[i] > 1 ? "s" : "";
  div.append("div").text(
    state.networkShape[i] + " neuron" + suffix
  );
}