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<!DOCTYPE html> <html> <head> <script src="/lib/jquery-1.12.2.min.js"></script> <script> $(document).ready(function(){ $("#btn1").click(function(){ $("#test1").text("Hello world!"); }); $("#btn2").click(function(){ $("#test2").html("<b>Hello world!</b>"); }); $("#btn3").click(function(){ $("#test3").val("Dolly Duck"); }); }); </script> </head> <body> <p id="test1">This is a paragraph.</p> <p id="test2">This is another paragraph.</p> <p>Input field: <input type="text" id="test3" value="Mickey Mouse"></p> <button id="btn1">Set Text</button> <button id="btn2">Set HTML</button> <button id="btn3">Set Value</button> </body> </html>