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i didnt get the correct code to make text bold , italic and underline in 'alert box'. &nbsp;kindly tell me the simple executable code. i need it urgently ..plz help me.
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i didnt get the correct code to make text bold , italic and underline in 'alert box'.  kindly tell me the simple executable code. i need it urgently ..plz help me.

bold text in alert box

JavaScript is a dynamic, object-based language commonly used for client-side scripting in web browsers. Recently, server side JavaScript frameworks have also emerged. JavaScript runs on nearly every operating system and  in almost every mainstream web browser.