The JavaScript Symbol.toStringTag property creates the default string description of an object. The Object.prototype.toString() method internally use it.
Syntax:
Symbol.toStringTag
Example 1:
<!DOCTYPE html>
<html>
<body>
<script>
class obj {get [Symbol.toStringTag]() {
return 'HELLO'; } }
document.write(Object.prototype.toString.call(new obj()));
</script>
</body>
</html>
Example 2:
<!DOCTYPE html>
<html>
<body>
<script>
class TestDisplay {
get [Symbol.toStringTag]() {
return 'Hello w3schools';
}
}
document.write(Object.prototype.toString.call(new TestDisplay()));
</script>
</body>
</html>