title: How to install npm package from nodejs script?
body: <p>How to install npm package from nodejs script?</p>
  
  <p>Question is <strong><em>not</strong> about simple <strong>installation</strong> npm packages <strong>via terminal</em></strong>,<br>
  it is about <strong>installation via nodejs script</strong>:<br>
  Not about this: <code>npm install express</code>, but about having <code>install.js</code> file with content <code>npm install express</code>, which I will execute like <code>node install.js</code> and after this it will locally install <em>express</em> module in this folder.</p>
  
  <p><em>Sorry, but Google and DuckDuckGo are not my friends today(</em></p>
  
  <p><strong>The main problem</strong> is in automatic local installation required packages for my small utility, because global packages are not working in windows.</p>