copy input with .each() to multiple divs

Question

i want to copy the input from a user to multiple div's. I tried to use .each() because i want to apply it to every div that follows. I wrote this code so far, but it's only working for the first div.

<input type="text" name="someText" id="someText">



$("#someText").keyup(function() {
    var x = $("#someText").val();
    $("#copy").each(function () {
        $(this).html(x);
    });
});


<div id="copy"></div>
<div id="copy"></div>

Best Regards,

Felix

Answer 1

IDs have to be unique:

id = name [CS]
This attribute assigns a name to an element. This name must be unique in a document.

Most browsers will return the first element of a document with a given ID, though the behaviour is unspecified.

Use classes instead if you want to select multiple elements:

HTML:

<div class="copy"></div>
<div class="copy"></div>

JavaScript:

$("#someText").keyup(function() {
    $(".copy").text(this.value);
});

Some other points:

• You don't have to use .each, setter methods are normally always applied to all elements of the set.
• Inside the event handler, this refers to the element the handler is bound to. You don't have to use the selector again.
• If you already have a reference to a DOM element, it is often simpler to just access one of its properties directly instead of going through jQuery.