full how to get voice input using html/js code example

Example 1: speech to text in js

$('#start-record-btn').on('click', function(e) {
  recognition.start();
});

Example 2: speech to text in js

recognition.onresult = function(event) {

  // event is a SpeechRecognitionEvent object.
  // It holds all the lines we have captured so far. 
  // We only need the current one.
  var current = event.resultIndex;

  // Get a transcript of what was said.
  var transcript = event.results[current][0].transcript;

  // Add the current transcript to the contents of our Note.
  noteContent += transcript;
  noteTextarea.val(noteContent);
}