Question: ```
<div class='hide'>A</div>
<div class='hide'>B</div>
<div class='hide' id='1'>C</div>

```

I have a function called showOne which should hide all elements and then show the one with id='1'.

```
function showOne(id) {
// Hide all elements with class = 'hide'
$('#'+id).show();
}

```

How do I hide all elements with class = 'hide' in jquery?

Answer: 
Try:

```
function showOne(id) { 
    $('.hide').hide();
    $('#'+id).show(); 
} 

```
You can hide all components with class as hide using **.** 
 $('.hide').hide();