Check out example codes for "html text content new line". It will help you in understanding the concepts better.
Code Example 1
//setting this css style solving problem with new line in textContent h1.setAttribute('style', 'white-space: pre;'); //add \r\n in text everywhere You want for line-break (new line) h1.textContent = "this is line one \r\n and this is line 2";
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