How to determine the number of lines and width of text in a TextArea?

To determine the number of lines and width of the text in a TextArea, you can follow these steps:

1. Obtain a reference to the TextArea element. You can use the document.getElementById or document.querySelector methods in JavaScript to get a reference to the TextArea element. For example: const textarea = document.getElementById(‘myTextarea’);
2. You can obtain the text content of a TextArea by using the textarea.value property. For example: const text = textarea.value;
3. Calculate the number of lines in the text by splitting the text into an array based on the newline character \n, and then getting the length of the array. For example: const lines = text.split(‘\n’).length;
4. Calculate the width of the text. You can use the getComputedStyle method in CSS to obtain the style of a TextArea element, and then use the getPropertyValue method to get the width of the TextArea element. For example: const width = window.getComputedStyle(textarea).getPropertyValue(‘width’);

Please make sure that the TextArea element has finished loading and is visible when calculating the number of lines and width of the text.