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 class="waves-effect waves-light btn" id="pause_btn">Pause<i class="material-icons right">pause_circle_outline</i></a>
</body>
</html>.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 (as they are inline elements and are by default formatted/shown as a simple text element), but they help by making the text node selectable by document.querySelector!
Example:
var playing = true
window.addEventListener("load", () => {
document.querySelector("#pause_btn").addEventListener("click", () => {
playing = !playing
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://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0/js/materialize.min.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 class="waves-effect waves-light btn" id="pause_btn">
<span>Pause</span>
<i class="material-icons right">pause_circle_outline</i>
</a>
</body>
</html>I also added some extra code to make it clickable multiple times!
*: By safe, in this context, I mean that it's safe from a security issue called XSS. Generally it's better to use innerText when you don't explicitly need to change the HTML itself, but if you do: Make sure that there's NO way a user can input something that gets put into the innerHTML. What I initially meant was simply that writing to either innerHTML and innerText will always overwrite whatever contents the element has, and that innerText is generally the safer of the two.
Have you tried putting the icon along with the text to the innerHTML?
jQuery(document).ready(function($){
$(document.getElementById("pause_btn")).click(function(){
document.getElementById("pause_btn").innerHTML = 'Resume<i class="material-icons right">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 class="waves-effect waves-light btn" id="pause_btn">Pause<i class="material-icons right">pause_circle_outline</i></a>
</body>
</html>