Javascript Alert Dialog Box

Javascript Alert Dialog Box

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The Javascript alert dialog box is used to display a warning message to the users. Note: Alert dialog box gives one button “OK”. Example: <!DOCTYPE html> <html> <body> <script> function giveWarning() { alert(“Warning message.”); document.write (“Warning message.”); } </script> <p>Click Submit button and see result.</p> <form> <input type=”button” onclick=”giveWarning()” value=”Submit” /> </form> </body> </html>