Monkey-patch `console.log` to print JSON versions of objects

also-log-json.js

var ___console_log = console.log;
var ___seen = [];
var ___skipCycles = (key, val) => {
  if (val != null && typeof val == 'object') {
    if (___seen.indexOf(val) >= 0) {
      return;
    }
    ___seen.push(val);
  }
  return val;
};

console.log = (message?: any, ...optionalParams: any[]) => {
  const jsonParams = optionalParams.map(r => {
    if (typeof (r) === 'object') {
      ___seen = [];
      return JSON.stringify(r, ___skipCycles);
    } else {
      return r;
    }
  })
  ___seen = [];
  const jsonMessage = typeof (message) === 'object' ? JSON.stringify(message, ___skipCycles) : message;
  ___console_log(message, ...optionalParams);
  ___console_log(jsonMessage, ...jsonParams);
};