How to change placeholder?

Question

JavaScript

I change the text on the page relative to the utm tag. There was a desire to change the placeholder of one inputa'a.

This is how a simple text changes, there is no problem with this.

if(number == 'prodazhi') {$('#utm_title').html('Продажи!');

How can I change the placeholder of such an element?

<input type="text" name="mySecondInput" onkeyup="writeMessage()" size="50" placeholder="http://example.com/">

Answer 1

Better and more modern .prop()

Answer 2

.attr()