Plug-ins in HTML computer programs hote hain jo browser ki standard functionality ko extend karte hain. Plug-ins in HTML ka use web pages par additional features provide karne ke liye kiya jata tha, jaise multimedia content ya special applications run karna.
Plug-ins
Plug-ins in HTML ko alag-alag purposes ke liye design kiya gaya tha:
-
Java applets run karne ke liye
-
Microsoft ActiveX controls run karne ke liye
-
Flash movies display karne ke liye
-
Maps display karne ke liye
-
Viruses scan karne ke liye
-
Bank ID verify karne ke liye
Warning:
Aaj kal ke most browsers Plug-ins in HTML ko support nahi karte.
-
Java Applets aur traditional plug-ins ka support almost khatam ho chuka hai.
-
ActiveX controls ab kisi bhi modern browser mein supported nahi hain.
-
Shockwave Flash ka support bhi modern browsers mein band kar diya gaya hai.
Isliye aaj kal web development mein plug-ins ki jagah modern HTML features use kiye jaate hain.
The <object> Element
<object> element sabhi browsers dwara supported hai. Plug-ins in HTML ko embed karne ke liye <object> element ka use kiya jata tha.
<object> element HTML document ke andar ek embedded object define karta hai.
Isko originally plug-ins embed karne ke liye design kiya gaya tha (jaise Java applets, PDF readers aur Flash Players), lekin isko HTML ke andar HTML include karne ke liye bhi use kiya ja sakta hai.
Example (HTML file include karne ke liye):
Images include karne ke liye bhi use kiya ja sakta hai.
Example (Image include karne ke liye):
The <embed> Element
<embed> element bhi sabhi major browsers mein supported hai. Plug-ins in HTML ko embed karne ke liye <embed> element ka bhi use kiya jata tha.
<embed> element HTML document ke andar embedded object define karta hai.
Web browsers kaafi time se <embed> element ko support karte aa rahe hain, lekin HTML5 se pehle ye official HTML specification ka part nahi tha.
Example:
Dhyaan rahe ki <embed> element ka koi closing tag nahi hota aur isme alternative text bhi nahi diya ja sakta.
<embed> element ko HTML ke andar HTML include karne ke liye bhi use kiya ja sakta hai.
Example:
