This is an example of using onclick event. Click the following text to see the effect. Welcome to the javaTpoint.com

A characteristic of a control, similar to the properties of other controls, may alter how the control appears or disappears from the form while the programme is running.

How long does the mouse pointer remain on a jagged line while editing code?

form> <label for="username">Username <i>(letters and numbers only, no punctuation or special characters)</i></label><br> <input name="username" id="username" pattern="[A-Za-z0-9]+"> </form> What do the square brackets and plus sign (+) mean?