I have large sets of data (mainly arrays and objects with many elements) and I am trying to log out the entire result to check for bugs. However, in some cases it says "Logging output too large. Truncating output." Where can I see the output in its entirety? I am working with Map Objects and trying to debug why my calculations don't match Google's output.

CodePudding user response：

Logger.log is limited to the number of lines that it can contain. However you can make your own logger and save it to a text file.

var Log = null;

function testLogger() {
  try {
    Log = new LogFile("testLogFile");
    test1();
    test2();
    throw "done"
  }
  catch(err) {
    Log.log(err);
    Log.save();
  }
}

function test1() {
  Log.log("in test1");
}

function test2() {
  Log.log("in test2");
}

class LogFile {
  constructor (name) {
    if( name === undefined ) name = "_LogFile"
    this.name = name;
    this.text = [];
  }
  log(text) {
    this.text.push(text);
  }
  save() {
    try {
      let text = "";
      this.text.forEach( line => text = text.concat(line,"\n") );

      let files = DriveApp.getFilesByName(this.name);
      let file = null;
      if( files.hasNext() ) {
        file = files.next();
        file.setContent(text);
      }
      else {
        DriveApp.createFile(this.name,text);
      }
    }
    catch(err) {
      Logger.log(err);
    }
  }
}

The text file is shown below.