jQuery - Target HTML Elements with Selectors Using jQuery

[isaac96kim]

Tell us what’s happening:
What does it mean to say

“All jQuery functions start with a $ , usually referred to as a dollar sign operator, or as bling.”
?

When I googled it seems like $ is just an alias for jQuery, is that also considered an operator? What really is an operator in the first place?

  **Your code so far**

<script>
$(document).ready(function() {
  $
});
</script>

<!-- Only change code above this line -->

<div class="container-fluid">
<h3 class="text-primary text-center">jQuery Playground</h3>
<div class="row">
  <div class="col-xs-6">
    <h4>#left-well</h4>
    <div class="well" id="left-well">
      <button class="btn btn-default target" id="target1">#target1</button>
      <button class="btn btn-default target" id="target2">#target2</button>
      <button class="btn btn-default target" id="target3">#target3</button>
    </div>
  </div>
  <div class="col-xs-6">
    <h4>#right-well</h4>
    <div class="well" id="right-well">
      <button class="btn btn-default target" id="target4">#target4</button>
      <button class="btn btn-default target" id="target5">#target5</button>
      <button class="btn btn-default target" id="target6">#target6</button>
    </div>
  </div>
</div>
</div>

  **Your browser information:**

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36

Challenge: jQuery - Target HTML Elements with Selectors Using jQuery

Link to the challenge:

freeCodeCamp.org

[ilenia]

You can create an alias for a function by assigning it to a variable, so yeah, $() and jQuery() are the same thing in the same way that in this snippet

function foo() {
   console.log('foobar')
}
const bar = foo;

bar and foo are the same thing, bar has become an alias for the foo function

[lasjorg]

No, it isn’t an operator.

If it was I’m pretty sure JS would have to support operator overloading (i.e. giving new functionality to an operator) for it to be used as an alias.

let $ = 'test'
console.log($) // 'test'
let + = 'test' 
VM93:1 Uncaught SyntaxError: Unexpected token '='