<!DOCTYPE html> <html lang="ja-JP"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width,user-scalable=yes,initial-scale=1.0,minimum-scale=1.0,maximum-scale=1.5"> <title></title> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script> <script> function changeText(){ document.getElementById("first").innerText = "変更後"; //HTML5の場合、document.getElementById("ID名")は下のように省略できます。 //first.innerText = "変更後"; } </script> </head> <body> <p id="first">変更前</p> <p> <input type="button" value="変更" onclick="changeText();"> </p> </body> </html>
<!DOCTYPE html> <html lang="ja-JP"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width,user-scalable=yes,initial-scale=1.0,minimum-scale=1.0,maximum-scale=1.5"> <title></title> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script> <script> window.onload = function(){ document.getElementsByTagName("input")[0].onclick = function(){ document.getElementById("first").innerText = "変更後"; //HTML5の場合、document.getElementById("ID名")は下のように省略できます。 //first.innerText = "変更後"; } } </script> </head> <body> <p id="first">変更前</p> <p> <input type="button" value="変更"> </p> </body> </html>
<!DOCTYPE html> <html lang="ja-JP"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width,user-scalable=yes,initial-scale=1.0,minimum-scale=1.0,maximum-scale=1.5"> <title></title> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script> <script> window.addEventListener("load",function(){ document.getElementsByTagName("input")[0].addEventListener("click",function(){ document.getElementById("first").innerText = "変更後"; //HTML5の場合、document.getElementById("ID名")は下のように省略できます。 //first.innerText = "変更後"; }); }); </script> </head> <body> <p id="first">変更前</p> <p> <input type="button" value="変更"> </p> </body> </html>
<!DOCTYPE html> <html lang="ja-JP"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width,user-scalable=yes,initial-scale=1.0,minimum-scale=1.0,maximum-scale=1.5"> <title></title> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script> <script> $(function(){ $("input").click(function(){ $("#first").text("変更後"); }); }); </script> </head> <body> <p id="first">変更前</p> <p> <input type="button" value="変更" /> </p> </body> </html>