JS Bin

var js = {

  lineNumber: 1

};

​

js.log = function(text) {

  var node, child, lineText;

​

  node = document.getElementById('result');

  if (!node) {

    node = document.createElement('div');

    node.id = 'result';

    document.body.appendChild(node);

  }

​

  child = document.createElement('div');

​

  lineText = js.lineNumber + '.';

  lineText = Array.isArray(text) ? lineText + '[' + text + ']' : lineText + text;

​

  if (arguments.length > 1) {

    for (var k = 1; k < arguments.length; k++) {

      lineText += arguments[k];

    }

  }

​

  child.innerText === undefined ? child.textContent = lineText : child.innerText = lineText;

​

  node.appendChild(child);

  js.lineNumber += 1;

  return this;

};

​

​

window.onload = function() {

  var node = document.createTextNode(' hi dowon');

  var el = document.getElementById('sports');

  el.appendChild(node);

  js.log(el.textContent);

  var node = document.createElement('div');

  js.log(node.nodeName);

  // var doc = document;

  // js.log('URL: ', doc.URL);

  //

  // js.log('doucmentURI: ', doc.documentURI);

  // js.log('compatMode: ', doc.compatMode);

  //

  // js.log('characterSet: ', doc.characterSet || doc.character);

  // js.log('contentType: ', doc.contentType);

​

  // var nodes = document.getElementsByClassName('sports');

  // for (var k = 0; k < nodes.length; k++) {

  //   js.log(nodes[k].checked);

  // }

​

};

​