title: RegEx fetch a value data by sentence
body: <p><strong>Hello community,</strong></p>
  
  <p>I'm trying to figure out how I can get only the value of a specific key. Let's say:</p>
  
  <pre><code>Item Number: 121225734541
  transaction:: 1205737904002
  Price: C $4.73 
  Shipping price: Free
  </code></pre>
  
  <p>I need to get only the value after the ":" char.</p>
  
  <p>Key: Item Number, Value: 121225734541</p>
  
  <p>Any ideas?</p>