JavaScript RegEx Example Code for Text Input Limitations

One more JavaScript code example to limit user inputs with many options: non-alphanumeric characters with spaces, removes extra spaces (multiple consecutive, leading and trailing) and blank lines. In this live demo, you can only enter upto 20 characters per line or a total of 10 lines.

The advantage of this JavaScript code example is it's made with RegEx, so user input filters will be processed better.

Sampled by © Textarea below has limitations: 20 characters and 10 lines

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