控制台 output 没有出现在代码战争中

Question

I'm doing some javascript exercises on code wars. I want to see what's going wrong in my programs by printing to the console, but nothing except the test results appears in the output window. Does anyone know how to print to the console in code wars? I can't find anything in their documentation.

function areYouPlayingBanjo(name) {
  // Implement me
  var person = name.split('');
  person[0].toLowerCase();
  console.log(person[0]);
  if(person[0] === 'r'){
    return name + " plays banjo";
  }
  else{
    return name + " does not play banjo";
  }
}

Answer 1

see this issue: http://www.codewars.com/users/Elistan/comments https://codewars.com/users/isbadawi/replies

from coding point of view first store the lower case value then compare:you need to do something like this:

function areYouPlayingBanjo(name) {
      // Implement me
      var person = name.split('');
      console.log(person);
     var x= person[0].toLowerCase();
      console.log(person[0],x);// see difference here
      if(x === 'r'){// if you will use person[0] it will not match from given input because it will be R
        return name + " plays banjo";
      }
      else{
        return name + " does not play banjo";
      }
    }

var out = areYouPlayingBanjo('Rikke, rikke and Martin');
    console.log(out);

Answer 2

This is not exactly an answer to the question, but more of an extended answer in order to document a chrome extension that can allow debugging in the console for codewars.

Install this chrome extension: https://github.com/bojan88/Codewars-JavaScript-debugger

This allows you to use the debugger; statement to force the your code to run in the browser rather than the sandboxed environment on the codewars servers. Works great.

Caveat: I don't know if this is safe. Use at your own risk.

Answer 3

Link about this question : https://www.codewars.com/kata/are-you-playing-banjo/train/javascript

 const areYouPlayingBanjo = n => (n[0] == 'R' || n[0] == 'r') ? `${n} plays banjo` : `${n} does not play banjo` console.log(areYouPlayingBanjo("Martin"), "Martin does not play banjo"); console.log(areYouPlayingBanjo("Rikke"), "Rikke plays banjo");

Answer 4

This worked for me:

Console.Out.WriteLine("Print stuff to output here.");