Function prettyPrint

src/runtime_debug.js:263–284

(arg)

var printObjectList = [];

function prettyPrint(arg) {
  if (typeof arg == 'undefined') return 'undefined';
  if (typeof arg == 'boolean') arg = arg + 0;
  if (!arg) return arg;
  var index = printObjectList.indexOf(arg);
  if (index >= 0) return `<${arg}|${index}>`;
  if (arg.toString() == '[object HTMLImageElement]') {
    return arg + '\n\n';
  }
  if (arg.byteLength) {
    return '{' + Array.prototype.slice.call(arg, 0, Math.min(arg.length, 400)) + '}';
  }
  if (typeof arg == 'function') {
    return '<function>';
  } else if (typeof arg == 'object') {
    printObjectList.push(arg);
    return `<${arg}|${printObjectList.length-1}>`;
  } else if (typeof arg == 'number') {
    if (arg > 0) return `${ptrToString(arg)} (${arg})`;
  }
  return arg;
}
#endif