Jul 24, 2013 · So if a javascript or jquery function is called on click, it would not alert. if the item is a link to another site, it would not alert. but if nothing happens on the click event of an item …

Sep 14, 2017 · function plus() { console.log(nm); sum = +nm + +mn; if (nm == null || mn == null) { alert('no data'); } It will most likely just be blank. So in this case you can modify your condition …

Jan 5, 2022 · I am trying to add an alert that says "not found" when you search for nothing using a search bar that I have already programmed in JavaScript. Something like this: if …

alert ("I am an alert box!"); A confirm box is often used if you want the user to verify or accept something. When a confirm box pops up, the user will have to click either "OK" or "Cancel" to …

The alert() method displays an alert box with a message and an OK button. The alert() method is used when you want information to come through to the user. The alert box takes the focus …

JavaScript provides built-in global functions to display popup message boxes for different purposes. alert (message): Display a popup box with the specified message with the OK …

Nov 23, 2023 · The alert() method in JavaScript displays an alert box with a message and an OK button. It's used when you want information to come through to the user, providing immediate …

Oct 4, 2023 · window.alert() instructs the browser to display a dialog with an optional message, and to wait until the user dismisses the dialog. Under some conditions — for example, when …

Dec 21, 2013 · You have a number of fields on the page where a value is required; when the user submits the page, and any of the fields are blank, you'd like the page to display a Javascript …

You're missing quotes around uname .getElementById("uname").value and your function won't stop the form from submitting if there are validation issues. Here is the fix for the immediate …