Build an Object from a table by cell classes

tableCrawl.js

// orginally used for scraping a specification table. Rename function as you like.
// WARNING: This is a mix of es5 and es6. Take care with older browsers!
function getSpecs(col1, col2) { 
  var keys = [];
  var val = [];
  var result = {};
  
  // + build the arrays
  for(var i=0; i < document.querySelectorAll(col1).length; i++) { 
    // Everything passed .nodeValue is to clean up any spaces. You don't want spaces in your keys if you can help it
    keys[i] = document.querySelectorAll(col1)[i].firstChild.nodeValue.trim().toLowerCase().split(' ').join('_');
  }
  for(var i=0; i < document.querySelectorAll(col2).length; i++) { 
    val[i] = document.querySelectorAll(col2)[i].firstChild.nodeValue.trim();
  }

  // + Now build the obj. 
  // WARNING: If you need redundant Key names this will reduce them to the last version(i.g, item:thing,item:thing2 = item:thing2)!
  keys.forEach((key, i) => result[key] = val[i]);

  // + Get the resulting obj!
  return result
}

// Created a variable to get to key:value pairs more easily. You can use specList.keyname to get the value.
var specList = getSpecs('.spec-name','.spec-value');

console.log(specList);