title: Is there a way to merge filter and map into single operation in Kotlin?
body: <p>The below code will look for <code>"="</code> and then split them. If there's no <code>"="</code>, filter them away first</p>
  
  <pre><code>myPairStr.asSequence()
          .filter { it.contains("=") }
          .map { it.split("=") }
  </code></pre>
  
  <p>However seeing that we have both</p>
  
  <pre><code>        .filter { it.contains("=") }
          .map { it.split("=") }
  </code></pre>
  
  <p>Wonder if there's a single operation that could combine the operation instead of doing it separately?</p>