How can i change a text of a button without changing it's icon-CodePudding

i have a "Pause" button with a pause_circle_outline materialize icon, and when it clicked i want to change the text to "Resume" and changing the icon to play_circle_outline, but when i try to change the text it changed the text and deletes the icon. here is my code snippet example:

jQuery(document).ready(function($){
  
  $(document.getElementById("pause_btn")).click(function(){
      document.getElementById("pause_btn").innerText = "Resume"
  });
})

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0/js/materialize.min.js"></script>
    <script src = "Sources/js/select_require.js"></script>
    <script src = "Sources/js/routes.js"></script>
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0/css/materialize.min.css">
    <link href="https://fonts.googleapis.com/icon?family=Material Icons" rel="stylesheet">
  <body>
    <a  id="pause_btn">Pause<i >pause_circle_outline</i></a>
  </body>
</html>

CodePudding user response：

.innerText is a sort of "safe" way to access a node's innerHTML, which in your case includes both the Pause-text, as well as the <i.../> tag. A way to solve this is to add a span to hold the text. spans don't do anything, but they help by making the text node editable!

Example:

var playing = true

jQuery(document).ready(function($){
  
  $(document.getElementById("pause_btn")).click(function(){
      playing = !playing
      // I used querySelector instead of getElementById to get to the span directly. 
      if(playing) {
        document.querySelector("#pause_btn span").innerText = "Pause"
        document.querySelector("#pause_btn i").innerText = "pause_circle_outline"
      } else {
        document.querySelector("#pause_btn span").innerText = "Resume"
        document.querySelector("#pause_btn i").innerText = "play_circle_outline"
      }
  });
})

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0/js/materialize.min.js"></script>
    <script src = "Sources/js/select_require.js"></script>
    <script src = "Sources/js/routes.js"></script>
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0/css/materialize.min.css">
    <link href="https://fonts.googleapis.com/icon?family=Material Icons" rel="stylesheet">
  <body>
    <a  id="pause_btn">
      <span>Pause</span>
      <i >pause_circle_outline</i>
    </a>
  </body>
</html>

I also added some extra code to make it clickable multiple times!

CodePudding user response：

Both textContent and innerText remove child nodes when altered

Docs

Perhaps place your text within a span with an ID and change its textContent?

that way your i tag should remain untouched.

CodePudding user response：

Have you tried putting the icon along with the text to the innerText?

jQuery(document).ready(function($){
  
  $(document.getElementById("pause_btn")).click(function(){
      document.getElementById("pause_btn").innerText = 'Resume<i >pause_circle_outline</i>'
  });
})

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0/js/materialize.min.js"></script>
    <script src = "Sources/js/select_require.js"></script>
    <script src = "Sources/js/routes.js"></script>
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0/css/materialize.min.css">
    <link href="https://fonts.googleapis.com/icon?family=Material Icons" rel="stylesheet">
  <body>
    <a  id="pause_btn">Pause<i >pause_circle_outline</i></a>
  </body>
</html>