Get the js code of the text in the nth line of the textarea tag_form effects

<textarea id="textareaobj">1. Script House welcomes everyone 2. A lot of servers have been added recently to provide better speeds 3. The Internet speed is too slow
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Core code:

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The code is as follows:

Mainly check whether the textarea has spaces in the first line, everyone Please note that the code has been tested by Script House editor and there is no problem.