Create a JavaScript selection

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February 8th, 2013, 05:29 PM

karwork

Registered User

Join Date: Feb 2013

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Other - Create a JavaScript selection

Hi everyone!,
I'm learning javascript, that is why need your help.
I have this template
<javascript>
var $ = function (selector) {
var elements = [];

return elements;
}
</javascript>
in elements i have to return array that contenst the selector with the value, and when call $("div") - Should return 2 DIVs
any idea how to do it? thanks to all in advance.

February 8th, 2013, 08:44 PM

Jacques1

pollyanna

Join Date: Jul 2012

Location: Germany

Posts: 1,881

Time spent in forums: 1 Month 2 Weeks 2 Days 9 h 36 m 16 sec
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Hi,

there is no "javascript" element in HTML. I guess you meant

Code:

<script type="text/javascript"></script>

Also, what exactly is the point of your script? Reinventing jQuery?

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February 9th, 2013, 11:37 AM

karwork

Registered User

Join Date: Feb 2013

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Hi, I think I didn't explain very well.
I have 3 files
Test.html contains the HTML function will be tested
<!DOCTYPE html>
<head>
<script src="Answer.js"></script>
<script src="Test.js"></script>
</head>
<body>
<div></div>
<div id="some_id" class="some_class some_other_class"></div>
<img id="some_other_id" class="some_class some_other_class"></img>
<input type="text">
</body>
Test.js contains a function which provide results for your answer in the developer console
Answer.js contains a template function that should return an array of DOM elements that match the CSS selector.

var $ = function (selector) {
var elements = [];

return elements;
}
I hope I give more idea, what I want to do. thanks!

February 9th, 2013, 03:55 PM

Jacques1

pollyanna

Join Date: Jul 2012

Location: Germany

Posts: 1,881

Time spent in forums: 1 Month 2 Weeks 2 Days 9 h 36 m 16 sec
Reputation Power: 813

I understand what you're trying to do. The question is why you want to do it, because you're reinventing the wheel. Every framework on this planet (jQuery, Prototype, YUI, ...) has those element selectors already. So unless you do this purely for learning, it's pretty pointless.

Anyway, selecting all elements of the same type is a native JavaScript method:
getElementsByTagName

February 9th, 2013, 04:15 PM

karwork

Registered User

Join Date: Feb 2013

Posts: 3

Time spent in forums: 35 m 4 sec
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yes, you right. But I'm learning that is why. Anyway thanks for try to understand me

Other - Create a JavaScript selection

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