Function initializeGlobalConsole

lib/internal/console/constructor.js:683–712

(globalConsole)

Console.prototype.groupCollapsed = Console.prototype.group;

function initializeGlobalConsole(globalConsole) {
  globalConsole[kBindStreamsLazy](process);
  const {
    namespace: {
      addSerializeCallback,
      isBuildingSnapshot,
    },
  } = require('internal/v8/startup_snapshot');

  if (!internalBinding('config').hasInspector || !isBuildingSnapshot()) {
    return;
  }
  const { console: consoleFromVM } = internalBinding('inspector');
  const nodeConsoleKeys = ObjectKeys(Console.prototype);
  const vmConsoleKeys = ObjectKeys(consoleFromVM);
  const originalKeys = new SafeSet(vmConsoleKeys.concat(nodeConsoleKeys));
  const inspectorConsoleKeys = new SafeSet();
  for (const key of ObjectKeys(globalConsole)) {
    if (!originalKeys.has(key)) {
      inspectorConsoleKeys.add(key);
    }
  }
  // During deserialization these should be reinstalled to console by
  // V8 when the inspector client is created.
  addSerializeCallback(() => {
    for (const key of inspectorConsoleKeys) {
      globalConsole[key] = undefined;
    }
  });
}

module.exports = {
  Console,