title: How can I change the values of variables in a website's JavaScript code?
body: <p>How can I change the values of variables in a website's JavaScript code?</p>
  
  <p>I want to know because I'm building a website at the moment and, as part of the code, I have a variable whose value has important consequences for the functionality of the website. Hence my desire to know how someone can change this value (even if it only affects the website as it appears to that user). </p>
  
  <p>I am particularly interested in learning how to do this in Google Chrome.</p>