snake to camel

snake2camel.js

const A = (O) => {
  const keys = Object.keys(O);
  const newO = {};
  keys.forEach((k) => {
    const newK = k
      .split("_")
      .map((s, i) => {
        if (i > 0) {
          return s[0].toUpperCase() + s.substring(1);
        }
        return s;
      })
      .join("");
    let v = O[k];
    if (typeof v === "object" && v !== null) {
      v = A(v);
    }
    newO[newK] = v;
  });
  return newO;
};