Function printWarning

app/src/static/js/react-bootstrap.js:1483–1506

(format, args)

if (__DEV__) {
  var printWarning = function printWarning(format, args) {
    var len = arguments.length;
    args = new Array(len > 1 ? len - 1 : 0);

    for (var key = 1; key < len; key++) {
      args[key - 1] = arguments[key];
    }

    var argIndex = 0;
    var message = 'Warning: ' + format.replace(/%s/g, function () {
      return args[argIndex++];
    });

    if (typeof console !== 'undefined') {
      console.error(message);
    }

    try {
      // --- Welcome to debugging React ---
      // This error was thrown as a convenience so that you can use this stack
      // to find the callsite that caused this warning to fire.
      throw new Error(message);
    } catch (x) {}
  };

  warning = function (condition, format, args) {
    var len = arguments.length;