how do I turn a textarea input into a js variable [closed] - javascript

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I'm trying to turn a textarea into a js variable.
This is my textarea:
<textarea id="codeInput" placeholder="Enter your code here" style="width: 1495px; font-size: 40px; height: 400px;"></textarea>

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what should I write inside the function?
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Closed 7 days ago.
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I have a problem where when I try to edit an input box, the input box just will not accept my input.
JsFiddle:
https://jsfiddle.net/Michael_Chen/9h21Lsv5/241/
I've tried
input {
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}
also, when I remove my js it works again. It seems that accessing the .value of the input caused the problem, but I'm not sure.

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enter image description here
I don't know why i am not able to insert multiple images in html but I do get multiple images in console.log

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Closed 1 year ago.
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I need a way of making a HTML5 code that can make text that can't be copied, can someone help me?

If you want the user to be unable to mark and copy text, you can use pseudo elements:
div[data-text]::before {
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How can I use defmacro in Javascript?
defmacro ()?
Or, some other formats?

You just cannot.
Javascript is not Lisp

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